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Finding the Fourth Proportional to 62,605.16, 93,866.23 and 20,470.48

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Solution

The fourth proportional to 62,605.16, 93,866.23 and 20,470.48 is: 30,692.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,605.16 : 93,866.23 = 20,470.48 : x
  2. Step 2: Convert to fraction form
    62,605.16/93,866.23 = 20,470.48/x
  3. Step 3: Cross multiply
    62,605.16x = 93,866.23 × 20,470.48
  4. Step 4: Simplify right side
    62,605.16x = 1,921,486,987.66
  5. Step 5: Solve for x
    x = 1,921,486,987.66/62,605.16
  6. Step 6: Final answer
    x = 30,692.15

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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.