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Finding the Fourth Proportional to 37,892.59, 52,291.07 and 20,898.40

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Solution

The fourth proportional to 37,892.59, 52,291.07 and 20,898.40 is: 28,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,892.59 : 52,291.07 = 20,898.40 : x
  2. Step 2: Convert to fraction form
    37,892.59/52,291.07 = 20,898.40/x
  3. Step 3: Cross multiply
    37,892.59x = 52,291.07 × 20,898.40
  4. Step 4: Simplify right side
    37,892.59x = 1,092,799,435.83
  5. Step 5: Solve for x
    x = 1,092,799,435.83/37,892.59
  6. Step 6: Final answer
    x = 28,839.40

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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.