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Finding the Fourth Proportional to 52,740.80, 79,098.72 and 15,290.96

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Solution

The fourth proportional to 52,740.80, 79,098.72 and 15,290.96 is: 22,932.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,740.80 : 79,098.72 = 15,290.96 : x
  2. Step 2: Convert to fraction form
    52,740.80/79,098.72 = 15,290.96/x
  3. Step 3: Cross multiply
    52,740.80x = 79,098.72 × 15,290.96
  4. Step 4: Simplify right side
    52,740.80x = 1,209,495,363.57
  5. Step 5: Solve for x
    x = 1,209,495,363.57/52,740.80
  6. Step 6: Final answer
    x = 22,932.82

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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.