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Finding the Fourth Proportional to 83,062.45, 124,611.90 and 26,905.15

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Solution

The fourth proportional to 83,062.45, 124,611.90 and 26,905.15 is: 40,363.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,062.45 : 124,611.90 = 26,905.15 : x
  2. Step 2: Convert to fraction form
    83,062.45/124,611.90 = 26,905.15/x
  3. Step 3: Cross multiply
    83,062.45x = 124,611.90 × 26,905.15
  4. Step 4: Simplify right side
    83,062.45x = 3,352,701,861.29
  5. Step 5: Solve for x
    x = 3,352,701,861.29/83,062.45
  6. Step 6: Final answer
    x = 40,363.63

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1.5x scale

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.