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Finding the Fourth Proportional to 65,101.12, 89,802.17 and 38,238.68

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Solution

The fourth proportional to 65,101.12, 89,802.17 and 38,238.68 is: 52,747.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,101.12 : 89,802.17 = 38,238.68 : x
  2. Step 2: Convert to fraction form
    65,101.12/89,802.17 = 38,238.68/x
  3. Step 3: Cross multiply
    65,101.12x = 89,802.17 × 38,238.68
  4. Step 4: Simplify right side
    65,101.12x = 3,433,916,618.64
  5. Step 5: Solve for x
    x = 3,433,916,618.64/65,101.12
  6. Step 6: Final answer
    x = 52,747.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.