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Finding the Fourth Proportional to 18,658.35, 25,752.92 and 11,590.11

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Solution

The fourth proportional to 18,658.35, 25,752.92 and 11,590.11 is: 15,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.35 : 25,752.92 = 11,590.11 : x
  2. Step 2: Convert to fraction form
    18,658.35/25,752.92 = 11,590.11/x
  3. Step 3: Cross multiply
    18,658.35x = 25,752.92 × 11,590.11
  4. Step 4: Simplify right side
    18,658.35x = 298,479,117.67
  5. Step 5: Solve for x
    x = 298,479,117.67/18,658.35
  6. Step 6: Final answer
    x = 15,997.08

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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.