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Finding the Fourth Proportional to 18,575.83, 27,867.85 and 9,808.70

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Solution

The fourth proportional to 18,575.83, 27,867.85 and 9,808.70 is: 14,715.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.83 : 27,867.85 = 9,808.70 : x
  2. Step 2: Convert to fraction form
    18,575.83/27,867.85 = 9,808.70/x
  3. Step 3: Cross multiply
    18,575.83x = 27,867.85 × 9,808.70
  4. Step 4: Simplify right side
    18,575.83x = 273,347,216.43
  5. Step 5: Solve for x
    x = 273,347,216.43/18,575.83
  6. Step 6: Final answer
    x = 14,715.21

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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.