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Finding the Fourth Proportional to 37,644.60, 56,472.11 and 12,691.79

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Solution

The fourth proportional to 37,644.60, 56,472.11 and 12,691.79 is: 19,039.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,644.60 : 56,472.11 = 12,691.79 : x
  2. Step 2: Convert to fraction form
    37,644.60/56,472.11 = 12,691.79/x
  3. Step 3: Cross multiply
    37,644.60x = 56,472.11 × 12,691.79
  4. Step 4: Simplify right side
    37,644.60x = 716,732,110.22
  5. Step 5: Solve for x
    x = 716,732,110.22/37,644.60
  6. Step 6: Final answer
    x = 19,039.44

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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.