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Finding the Fourth Proportional to 27,160.68, 40,747.16 and 12,365.64

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Solution

The fourth proportional to 27,160.68, 40,747.16 and 12,365.64 is: 18,551.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,160.68 : 40,747.16 = 12,365.64 : x
  2. Step 2: Convert to fraction form
    27,160.68/40,747.16 = 12,365.64/x
  3. Step 3: Cross multiply
    27,160.68x = 40,747.16 × 12,365.64
  4. Step 4: Simplify right side
    27,160.68x = 503,864,711.58
  5. Step 5: Solve for x
    x = 503,864,711.58/27,160.68
  6. Step 6: Final answer
    x = 18,551.26

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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.