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Finding the Fourth Proportional to 24,468.80, 36,711.30 and 7,831.40

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Solution

The fourth proportional to 24,468.80, 36,711.30 and 7,831.40 is: 11,749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,468.80 : 36,711.30 = 7,831.40 : x
  2. Step 2: Convert to fraction form
    24,468.80/36,711.30 = 7,831.40/x
  3. Step 3: Cross multiply
    24,468.80x = 36,711.30 × 7,831.40
  4. Step 4: Simplify right side
    24,468.80x = 287,500,874.82
  5. Step 5: Solve for x
    x = 287,500,874.82/24,468.80
  6. Step 6: Final answer
    x = 11,749.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.