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Finding the Fourth Proportional to 8,298.76, 12,448.13 and 3,853.99

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Solution

The fourth proportional to 8,298.76, 12,448.13 and 3,853.99 is: 5,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.76 : 12,448.13 = 3,853.99 : x
  2. Step 2: Convert to fraction form
    8,298.76/12,448.13 = 3,853.99/x
  3. Step 3: Cross multiply
    8,298.76x = 12,448.13 × 3,853.99
  4. Step 4: Simplify right side
    8,298.76x = 47,974,918.15
  5. Step 5: Solve for x
    x = 47,974,918.15/8,298.76
  6. Step 6: Final answer
    x = 5,780.98

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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.