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Finding the Fourth Proportional to 37,398.96, 51,610.28 and 20,402.96

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Solution

The fourth proportional to 37,398.96, 51,610.28 and 20,402.96 is: 28,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,398.96 : 51,610.28 = 20,402.96 : x
  2. Step 2: Convert to fraction form
    37,398.96/51,610.28 = 20,402.96/x
  3. Step 3: Cross multiply
    37,398.96x = 51,610.28 × 20,402.96
  4. Step 4: Simplify right side
    37,398.96x = 1,053,002,118.36
  5. Step 5: Solve for x
    x = 1,053,002,118.36/37,398.96
  6. Step 6: Final answer
    x = 28,155.92

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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.