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Finding the Fourth Proportional to 9,167.54, 13,720.14 and 5,659.76

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Solution

The fourth proportional to 9,167.54, 13,720.14 and 5,659.76 is: 8,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.54 : 13,720.14 = 5,659.76 : x
  2. Step 2: Convert to fraction form
    9,167.54/13,720.14 = 5,659.76/x
  3. Step 3: Cross multiply
    9,167.54x = 13,720.14 × 5,659.76
  4. Step 4: Simplify right side
    9,167.54x = 77,652,699.57
  5. Step 5: Solve for x
    x = 77,652,699.57/9,167.54
  6. Step 6: Final answer
    x = 8,470.40

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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.