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Finding the Fourth Proportional to 59,354.80, 81,965.13 and 38,170.84

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Solution

The fourth proportional to 59,354.80, 81,965.13 and 38,170.84 is: 52,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,354.80 : 81,965.13 = 38,170.84 : x
  2. Step 2: Convert to fraction form
    59,354.80/81,965.13 = 38,170.84/x
  3. Step 3: Cross multiply
    59,354.80x = 81,965.13 × 38,170.84
  4. Step 4: Simplify right side
    59,354.80x = 3,128,677,862.81
  5. Step 5: Solve for x
    x = 3,128,677,862.81/59,354.80
  6. Step 6: Final answer
    x = 52,711.45

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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.