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Finding the Fourth Proportional to 18,387.52, 27,602.88 and 9,626.56

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Solution

The fourth proportional to 18,387.52, 27,602.88 and 9,626.56 is: 14,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.52 : 27,602.88 = 9,626.56 : x
  2. Step 2: Convert to fraction form
    18,387.52/27,602.88 = 9,626.56/x
  3. Step 3: Cross multiply
    18,387.52x = 27,602.88 × 9,626.56
  4. Step 4: Simplify right side
    18,387.52x = 265,720,780.49
  5. Step 5: Solve for x
    x = 265,720,780.49/18,387.52
  6. Step 6: Final answer
    x = 14,451.15

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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.