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Finding the Fourth Proportional to 18,572.66, 27,863.08 and 6,885.88

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Solution

The fourth proportional to 18,572.66, 27,863.08 and 6,885.88 is: 10,330.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,572.66 : 27,863.08 = 6,885.88 : x
  2. Step 2: Convert to fraction form
    18,572.66/27,863.08 = 6,885.88/x
  3. Step 3: Cross multiply
    18,572.66x = 27,863.08 × 6,885.88
  4. Step 4: Simplify right side
    18,572.66x = 191,861,686.00
  5. Step 5: Solve for x
    x = 191,861,686.00/18,572.66
  6. Step 6: Final answer
    x = 10,330.33

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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.