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Finding the Fourth Proportional to 62,486.12, 86,230.90 and 34,191.81

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Solution

The fourth proportional to 62,486.12, 86,230.90 and 34,191.81 is: 47,184.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,486.12 : 86,230.90 = 34,191.81 : x
  2. Step 2: Convert to fraction form
    62,486.12/86,230.90 = 34,191.81/x
  3. Step 3: Cross multiply
    62,486.12x = 86,230.90 × 34,191.81
  4. Step 4: Simplify right side
    62,486.12x = 2,948,390,566.57
  5. Step 5: Solve for x
    x = 2,948,390,566.57/62,486.12
  6. Step 6: Final answer
    x = 47,184.73

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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.