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Finding the Fourth Proportional to 59,340.78, 88,988.10 and 21,379.92

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Solution

The fourth proportional to 59,340.78, 88,988.10 and 21,379.92 is: 32,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,340.78 : 88,988.10 = 21,379.92 : x
  2. Step 2: Convert to fraction form
    59,340.78/88,988.10 = 21,379.92/x
  3. Step 3: Cross multiply
    59,340.78x = 88,988.10 × 21,379.92
  4. Step 4: Simplify right side
    59,340.78x = 1,902,558,458.95
  5. Step 5: Solve for x
    x = 1,902,558,458.95/59,340.78
  6. Step 6: Final answer
    x = 32,061.57

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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.