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Finding the Fourth Proportional to 18,585.92, 25,658.52 and 14,327.68

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Solution

The fourth proportional to 18,585.92, 25,658.52 and 14,327.68 is: 19,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585.92 : 25,658.52 = 14,327.68 : x
  2. Step 2: Convert to fraction form
    18,585.92/25,658.52 = 14,327.68/x
  3. Step 3: Cross multiply
    18,585.92x = 25,658.52 × 14,327.68
  4. Step 4: Simplify right side
    18,585.92x = 367,627,063.83
  5. Step 5: Solve for x
    x = 367,627,063.83/18,585.92
  6. Step 6: Final answer
    x = 19,779.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.