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Finding the Fourth Proportional to 62,479, 93,728.27 and 20,349.15

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Solution

The fourth proportional to 62,479, 93,728.27 and 20,349.15 is: 30,526.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,479 : 93,728.27 = 20,349.15 : x
  2. Step 2: Convert to fraction form
    62,479/93,728.27 = 20,349.15/x
  3. Step 3: Cross multiply
    62,479x = 93,728.27 × 20,349.15
  4. Step 4: Simplify right side
    62,479x = 1,907,290,625.47
  5. Step 5: Solve for x
    x = 1,907,290,625.47/62,479
  6. Step 6: Final answer
    x = 30,526.91

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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.