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Finding the Fourth Proportional to 26,691.64, 40,040.19 and 9,159.19

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Solution

The fourth proportional to 26,691.64, 40,040.19 and 9,159.19 is: 13,739.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,691.64 : 40,040.19 = 9,159.19 : x
  2. Step 2: Convert to fraction form
    26,691.64/40,040.19 = 9,159.19/x
  3. Step 3: Cross multiply
    26,691.64x = 40,040.19 × 9,159.19
  4. Step 4: Simplify right side
    26,691.64x = 366,735,607.75
  5. Step 5: Solve for x
    x = 366,735,607.75/26,691.64
  6. Step 6: Final answer
    x = 13,739.72

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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.