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Finding the Fourth Proportional to 8,657,624,251.65, 12,986,436,377.49 and 8,657,624,251.65

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Solution

The fourth proportional to 8,657,624,251.65, 12,986,436,377.49 and 8,657,624,251.65 is: 12,986,436,377.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657,624,251.65 : 12,986,436,377.49 = 8,657,624,251.65 : x
  2. Step 2: Convert to fraction form
    8,657,624,251.65/12,986,436,377.49 = 8,657,624,251.65/x
  3. Step 3: Cross multiply
    8,657,624,251.65x = 12,986,436,377.49 × 8,657,624,251.65
  4. Step 4: Simplify right side
    8,657,624,251.65x = 112,431,686,524,267,184,128
  5. Step 5: Solve for x
    x = 112,431,686,524,267,184,128/8,657,624,251.65
  6. Step 6: Final answer
    x = 12,986,436,377.49

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.