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Finding the Fourth Proportional to 83,283.74, 124,927.45 and 38,898.58

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Solution

The fourth proportional to 83,283.74, 124,927.45 and 38,898.58 is: 58,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,283.74 : 124,927.45 = 38,898.58 : x
  2. Step 2: Convert to fraction form
    83,283.74/124,927.45 = 38,898.58/x
  3. Step 3: Cross multiply
    83,283.74x = 124,927.45 × 38,898.58
  4. Step 4: Simplify right side
    83,283.74x = 4,859,500,232.69
  5. Step 5: Solve for x
    x = 4,859,500,232.69/83,283.74
  6. Step 6: Final answer
    x = 58,348.72

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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.