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Finding the Fourth Proportional to 18,458.26, 27,648.10 and 9,666.52

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Solution

The fourth proportional to 18,458.26, 27,648.10 and 9,666.52 is: 14,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.26 : 27,648.10 = 9,666.52 : x
  2. Step 2: Convert to fraction form
    18,458.26/27,648.10 = 9,666.52/x
  3. Step 3: Cross multiply
    18,458.26x = 27,648.10 × 9,666.52
  4. Step 4: Simplify right side
    18,458.26x = 267,260,911.61
  5. Step 5: Solve for x
    x = 267,260,911.61/18,458.26
  6. Step 6: Final answer
    x = 14,479.20

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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.