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Finding the Fourth Proportional to 71,967.47, 107,951.21 and 25,220.34

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Solution

The fourth proportional to 71,967.47, 107,951.21 and 25,220.34 is: 37,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,967.47 : 107,951.21 = 25,220.34 : x
  2. Step 2: Convert to fraction form
    71,967.47/107,951.21 = 25,220.34/x
  3. Step 3: Cross multiply
    71,967.47x = 107,951.21 × 25,220.34
  4. Step 4: Simplify right side
    71,967.47x = 2,722,566,093.51
  5. Step 5: Solve for x
    x = 2,722,566,093.51/71,967.47
  6. Step 6: Final answer
    x = 37,830.51

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Similar ratio
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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.