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Finding the Fourth Proportional to 34,031.68, 51,079.11 and 17,403.60

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Solution

The fourth proportional to 34,031.68, 51,079.11 and 17,403.60 is: 26,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,031.68 : 51,079.11 = 17,403.60 : x
  2. Step 2: Convert to fraction form
    34,031.68/51,079.11 = 17,403.60/x
  3. Step 3: Cross multiply
    34,031.68x = 51,079.11 × 17,403.60
  4. Step 4: Simplify right side
    34,031.68x = 888,960,143.40
  5. Step 5: Solve for x
    x = 888,960,143.40/34,031.68
  6. Step 6: Final answer
    x = 26,121.55

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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.