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Finding the Fourth Proportional to 29,105.52, 40,162.50 and 19,543.47

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Solution

The fourth proportional to 29,105.52, 40,162.50 and 19,543.47 is: 26,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,105.52 : 40,162.50 = 19,543.47 : x
  2. Step 2: Convert to fraction form
    29,105.52/40,162.50 = 19,543.47/x
  3. Step 3: Cross multiply
    29,105.52x = 40,162.50 × 19,543.47
  4. Step 4: Simplify right side
    29,105.52x = 784,914,613.88
  5. Step 5: Solve for x
    x = 784,914,613.88/29,105.52
  6. Step 6: Final answer
    x = 26,967.90

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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.