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Finding the Fourth Proportional to 37,752.78, 52,099.56 and 20,757.78

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Solution

The fourth proportional to 37,752.78, 52,099.56 and 20,757.78 is: 28,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,752.78 : 52,099.56 = 20,757.78 : x
  2. Step 2: Convert to fraction form
    37,752.78/52,099.56 = 20,757.78/x
  3. Step 3: Cross multiply
    37,752.78x = 52,099.56 × 20,757.78
  4. Step 4: Simplify right side
    37,752.78x = 1,081,471,204.58
  5. Step 5: Solve for x
    x = 1,081,471,204.58/37,752.78
  6. Step 6: Final answer
    x = 28,646.13

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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.