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Finding the Fourth Proportional to 59,779.80, 89,681.49 and 17,660.61

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Solution

The fourth proportional to 59,779.80, 89,681.49 and 17,660.61 is: 26,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,779.80 : 89,681.49 = 17,660.61 : x
  2. Step 2: Convert to fraction form
    59,779.80/89,681.49 = 17,660.61/x
  3. Step 3: Cross multiply
    59,779.80x = 89,681.49 × 17,660.61
  4. Step 4: Simplify right side
    59,779.80x = 1,583,829,819.11
  5. Step 5: Solve for x
    x = 1,583,829,819.11/59,779.80
  6. Step 6: Final answer
    x = 26,494.40

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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.