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Finding the Fourth Proportional to 25,115.20, 37,615.20 and 14,747.20

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Solution

The fourth proportional to 25,115.20, 37,615.20 and 14,747.20 is: 22,086.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.20 : 37,615.20 = 14,747.20 : x
  2. Step 2: Convert to fraction form
    25,115.20/37,615.20 = 14,747.20/x
  3. Step 3: Cross multiply
    25,115.20x = 37,615.20 × 14,747.20
  4. Step 4: Simplify right side
    25,115.20x = 554,718,877.44
  5. Step 5: Solve for x
    x = 554,718,877.44/25,115.20
  6. Step 6: Final answer
    x = 22,086.98

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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.