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Finding the Fourth Proportional to 62,820.60, 86,691.70 and 35,962.60

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Solution

The fourth proportional to 62,820.60, 86,691.70 and 35,962.60 is: 49,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,820.60 : 86,691.70 = 35,962.60 : x
  2. Step 2: Convert to fraction form
    62,820.60/86,691.70 = 35,962.60/x
  3. Step 3: Cross multiply
    62,820.60x = 86,691.70 × 35,962.60
  4. Step 4: Simplify right side
    62,820.60x = 3,117,658,930.42
  5. Step 5: Solve for x
    x = 3,117,658,930.42/62,820.60
  6. Step 6: Final answer
    x = 49,627.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.