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Finding the Fourth Proportional to 15,046.38, 20,764.38 and 8,332.59

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Solution

The fourth proportional to 15,046.38, 20,764.38 and 8,332.59 is: 11,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,046.38 : 20,764.38 = 8,332.59 : x
  2. Step 2: Convert to fraction form
    15,046.38/20,764.38 = 8,332.59/x
  3. Step 3: Cross multiply
    15,046.38x = 20,764.38 × 8,332.59
  4. Step 4: Simplify right side
    15,046.38x = 173,021,065.14
  5. Step 5: Solve for x
    x = 173,021,065.14/15,046.38
  6. Step 6: Final answer
    x = 11,499.18

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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.