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Finding the Fourth Proportional to 13,710.92, 20,567.10 and 4,351.65

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Solution

The fourth proportional to 13,710.92, 20,567.10 and 4,351.65 is: 6,527.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.92 : 20,567.10 = 4,351.65 : x
  2. Step 2: Convert to fraction form
    13,710.92/20,567.10 = 4,351.65/x
  3. Step 3: Cross multiply
    13,710.92x = 20,567.10 × 4,351.65
  4. Step 4: Simplify right side
    13,710.92x = 89,500,820.72
  5. Step 5: Solve for x
    x = 89,500,820.72/13,710.92
  6. Step 6: Final answer
    x = 6,527.71

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1.5x scale

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.