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Finding the Fourth Proportional to 8,981.01, 13,470.54 and 2,407.86

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Solution

The fourth proportional to 8,981.01, 13,470.54 and 2,407.86 is: 3,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.01 : 13,470.54 = 2,407.86 : x
  2. Step 2: Convert to fraction form
    8,981.01/13,470.54 = 2,407.86/x
  3. Step 3: Cross multiply
    8,981.01x = 13,470.54 × 2,407.86
  4. Step 4: Simplify right side
    8,981.01x = 32,435,174.44
  5. Step 5: Solve for x
    x = 32,435,174.44/8,981.01
  6. Step 6: Final answer
    x = 3,611.53

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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.