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Finding the Fourth Proportional to 59,910.80, 82,703.42 and 38,700.40

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Solution

The fourth proportional to 59,910.80, 82,703.42 and 38,700.40 is: 53,423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,910.80 : 82,703.42 = 38,700.40 : x
  2. Step 2: Convert to fraction form
    59,910.80/82,703.42 = 38,700.40/x
  3. Step 3: Cross multiply
    59,910.80x = 82,703.42 × 38,700.40
  4. Step 4: Simplify right side
    59,910.80x = 3,200,655,435.37
  5. Step 5: Solve for x
    x = 3,200,655,435.37/59,910.80
  6. Step 6: Final answer
    x = 53,423.68

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