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Finding the Fourth Proportional to 63,008.60, 94,512.90 and 31,515.80

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Solution

The fourth proportional to 63,008.60, 94,512.90 and 31,515.80 is: 47,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,008.60 : 94,512.90 = 31,515.80 : x
  2. Step 2: Convert to fraction form
    63,008.60/94,512.90 = 31,515.80/x
  3. Step 3: Cross multiply
    63,008.60x = 94,512.90 × 31,515.80
  4. Step 4: Simplify right side
    63,008.60x = 2,978,649,653.82
  5. Step 5: Solve for x
    x = 2,978,649,653.82/63,008.60
  6. Step 6: Final answer
    x = 47,273.70

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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.