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Finding the Fourth Proportional to 69,031.55, 103,531.82 and 26,897.17

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Solution

The fourth proportional to 69,031.55, 103,531.82 and 26,897.17 is: 40,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,031.55 : 103,531.82 = 26,897.17 : x
  2. Step 2: Convert to fraction form
    69,031.55/103,531.82 = 26,897.17/x
  3. Step 3: Cross multiply
    69,031.55x = 103,531.82 × 26,897.17
  4. Step 4: Simplify right side
    69,031.55x = 2,784,712,445.29
  5. Step 5: Solve for x
    x = 2,784,712,445.29/69,031.55
  6. Step 6: Final answer
    x = 40,339.71

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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.