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Finding the Fourth Proportional to 29,375.64, 40,538.29 and 15,946.80

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Solution

The fourth proportional to 29,375.64, 40,538.29 and 15,946.80 is: 22,006.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,375.64 : 40,538.29 = 15,946.80 : x
  2. Step 2: Convert to fraction form
    29,375.64/40,538.29 = 15,946.80/x
  3. Step 3: Cross multiply
    29,375.64x = 40,538.29 × 15,946.80
  4. Step 4: Simplify right side
    29,375.64x = 646,456,002.97
  5. Step 5: Solve for x
    x = 646,456,002.97/29,375.64
  6. Step 6: Final answer
    x = 22,006.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.