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Finding the Fourth Proportional to 37,502.40, 56,237.40 and 18,775.20

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Solution

The fourth proportional to 37,502.40, 56,237.40 and 18,775.20 is: 28,154.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,502.40 : 56,237.40 = 18,775.20 : x
  2. Step 2: Convert to fraction form
    37,502.40/56,237.40 = 18,775.20/x
  3. Step 3: Cross multiply
    37,502.40x = 56,237.40 × 18,775.20
  4. Step 4: Simplify right side
    37,502.40x = 1,055,868,432.48
  5. Step 5: Solve for x
    x = 1,055,868,432.48/37,502.40
  6. Step 6: Final answer
    x = 28,154.69

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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.