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Finding the Fourth Proportional to 7,884,920.70, 11,827,381.05 and 7,884,920.70

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Solution

The fourth proportional to 7,884,920.70, 11,827,381.05 and 7,884,920.70 is: 11,827,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884,920.70 : 11,827,381.05 = 7,884,920.70 : x
  2. Step 2: Convert to fraction form
    7,884,920.70/11,827,381.05 = 7,884,920.70/x
  3. Step 3: Cross multiply
    7,884,920.70x = 11,827,381.05 × 7,884,920.70
  4. Step 4: Simplify right side
    7,884,920.70x = 93,257,961,667,932.75
  5. Step 5: Solve for x
    x = 93,257,961,667,932.75/7,884,920.70
  6. Step 6: Final answer
    x = 11,827,381.05

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1.5x scale

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.