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Finding the Fourth Proportional to 27,631.68, 41,434.68 and 8,908.20

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Solution

The fourth proportional to 27,631.68, 41,434.68 and 8,908.20 is: 13,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.68 : 41,434.68 = 8,908.20 : x
  2. Step 2: Convert to fraction form
    27,631.68/41,434.68 = 8,908.20/x
  3. Step 3: Cross multiply
    27,631.68x = 41,434.68 × 8,908.20
  4. Step 4: Simplify right side
    27,631.68x = 369,108,416.38
  5. Step 5: Solve for x
    x = 369,108,416.38/27,631.68
  6. Step 6: Final answer
    x = 13,358.16

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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.