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Finding the Fourth Proportional to 41,920.47, 62,888.47 and 13,842.47

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Solution

The fourth proportional to 41,920.47, 62,888.47 and 13,842.47 is: 20,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,920.47 : 62,888.47 = 13,842.47 : x
  2. Step 2: Convert to fraction form
    41,920.47/62,888.47 = 13,842.47/x
  3. Step 3: Cross multiply
    41,920.47x = 62,888.47 × 13,842.47
  4. Step 4: Simplify right side
    41,920.47x = 870,531,881.94
  5. Step 5: Solve for x
    x = 870,531,881.94/41,920.47
  6. Step 6: Final answer
    x = 20,766.27

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1.5x scale

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.