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Finding the Fourth Proportional to 56,697, 85,049.10 and 17,257.02

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Solution

The fourth proportional to 56,697, 85,049.10 and 17,257.02 is: 25,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,697 : 85,049.10 = 17,257.02 : x
  2. Step 2: Convert to fraction form
    56,697/85,049.10 = 17,257.02/x
  3. Step 3: Cross multiply
    56,697x = 85,049.10 × 17,257.02
  4. Step 4: Simplify right side
    56,697x = 1,467,694,019.68
  5. Step 5: Solve for x
    x = 1,467,694,019.68/56,697
  6. Step 6: Final answer
    x = 25,886.63

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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.