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Finding the Fourth Proportional to 18,575.40, 27,863.10 and 12,233.10

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Solution

The fourth proportional to 18,575.40, 27,863.10 and 12,233.10 is: 18,349.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.40 : 27,863.10 = 12,233.10 : x
  2. Step 2: Convert to fraction form
    18,575.40/27,863.10 = 12,233.10/x
  3. Step 3: Cross multiply
    18,575.40x = 27,863.10 × 12,233.10
  4. Step 4: Simplify right side
    18,575.40x = 340,852,088.61
  5. Step 5: Solve for x
    x = 340,852,088.61/18,575.40
  6. Step 6: Final answer
    x = 18,349.65

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Half scale
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Double scale
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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.