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Finding the Fourth Proportional to 59,312.49, 89,381.35 and 53,691.88

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Solution

The fourth proportional to 59,312.49, 89,381.35 and 53,691.88 is: 80,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,312.49 : 89,381.35 = 53,691.88 : x
  2. Step 2: Convert to fraction form
    59,312.49/89,381.35 = 53,691.88/x
  3. Step 3: Cross multiply
    59,312.49x = 89,381.35 × 53,691.88
  4. Step 4: Simplify right side
    59,312.49x = 4,799,052,371.49
  5. Step 5: Solve for x
    x = 4,799,052,371.49/59,312.49
  6. Step 6: Final answer
    x = 80,911.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.