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Finding the Fourth Proportional to 62,985.66, 86,920.05 and 34,691.34

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Solution

The fourth proportional to 62,985.66, 86,920.05 and 34,691.34 is: 47,873.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,985.66 : 86,920.05 = 34,691.34 : x
  2. Step 2: Convert to fraction form
    62,985.66/86,920.05 = 34,691.34/x
  3. Step 3: Cross multiply
    62,985.66x = 86,920.05 × 34,691.34
  4. Step 4: Simplify right side
    62,985.66x = 3,015,373,007.37
  5. Step 5: Solve for x
    x = 3,015,373,007.37/62,985.66
  6. Step 6: Final answer
    x = 47,873.96

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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.