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Finding the Fourth Proportional to 18,312.64, 27,468.96 and 6,623.13

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Solution

The fourth proportional to 18,312.64, 27,468.96 and 6,623.13 is: 9,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.64 : 27,468.96 = 6,623.13 : x
  2. Step 2: Convert to fraction form
    18,312.64/27,468.96 = 6,623.13/x
  3. Step 3: Cross multiply
    18,312.64x = 27,468.96 × 6,623.13
  4. Step 4: Simplify right side
    18,312.64x = 181,930,493.04
  5. Step 5: Solve for x
    x = 181,930,493.04/18,312.64
  6. Step 6: Final answer
    x = 9,934.70

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Similar ratio
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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.