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Finding the Fourth Proportional to 17,512.30, 26,268.90 and 5,031.82

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Solution

The fourth proportional to 17,512.30, 26,268.90 and 5,031.82 is: 7,547.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,512.30 : 26,268.90 = 5,031.82 : x
  2. Step 2: Convert to fraction form
    17,512.30/26,268.90 = 5,031.82/x
  3. Step 3: Cross multiply
    17,512.30x = 26,268.90 × 5,031.82
  4. Step 4: Simplify right side
    17,512.30x = 132,180,376.40
  5. Step 5: Solve for x
    x = 132,180,376.40/17,512.30
  6. Step 6: Final answer
    x = 7,547.86

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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.