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Finding the Fourth Proportional to 6,159.60, 9,248.76 and 5,379.12

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Solution

The fourth proportional to 6,159.60, 9,248.76 and 5,379.12 is: 8,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,159.60 : 9,248.76 = 5,379.12 : x
  2. Step 2: Convert to fraction form
    6,159.60/9,248.76 = 5,379.12/x
  3. Step 3: Cross multiply
    6,159.60x = 9,248.76 × 5,379.12
  4. Step 4: Simplify right side
    6,159.60x = 49,750,189.89
  5. Step 5: Solve for x
    x = 49,750,189.89/6,159.60
  6. Step 6: Final answer
    x = 8,076.85

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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.