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Finding the Fourth Proportional to 13,917.52, 20,871.10 and 5,594.74

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Solution

The fourth proportional to 13,917.52, 20,871.10 and 5,594.74 is: 8,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.52 : 20,871.10 = 5,594.74 : x
  2. Step 2: Convert to fraction form
    13,917.52/20,871.10 = 5,594.74/x
  3. Step 3: Cross multiply
    13,917.52x = 20,871.10 × 5,594.74
  4. Step 4: Simplify right side
    13,917.52x = 116,768,332.83
  5. Step 5: Solve for x
    x = 116,768,332.83/13,917.52
  6. Step 6: Final answer
    x = 8,390.02

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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.