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Finding the Fourth Proportional to 62,850.03, 86,648.15 and 42,671.88

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Solution

The fourth proportional to 62,850.03, 86,648.15 and 42,671.88 is: 58,829.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,850.03 : 86,648.15 = 42,671.88 : x
  2. Step 2: Convert to fraction form
    62,850.03/86,648.15 = 42,671.88/x
  3. Step 3: Cross multiply
    62,850.03x = 86,648.15 × 42,671.88
  4. Step 4: Simplify right side
    62,850.03x = 3,697,439,245.66
  5. Step 5: Solve for x
    x = 3,697,439,245.66/62,850.03
  6. Step 6: Final answer
    x = 58,829.55

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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.