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Finding the Fourth Proportional to 83,506.62, 125,276.31 and 30,916.56

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Solution

The fourth proportional to 83,506.62, 125,276.31 and 30,916.56 is: 46,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,506.62 : 125,276.31 = 30,916.56 : x
  2. Step 2: Convert to fraction form
    83,506.62/125,276.31 = 30,916.56/x
  3. Step 3: Cross multiply
    83,506.62x = 125,276.31 × 30,916.56
  4. Step 4: Simplify right side
    83,506.62x = 3,873,112,554.69
  5. Step 5: Solve for x
    x = 3,873,112,554.69/83,506.62
  6. Step 6: Final answer
    x = 46,380.90

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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.