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Finding the Fourth Proportional to 83,259.99, 124,930.98 and 38,880.29

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Solution

The fourth proportional to 83,259.99, 124,930.98 and 38,880.29 is: 58,339.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,259.99 : 124,930.98 = 38,880.29 : x
  2. Step 2: Convert to fraction form
    83,259.99/124,930.98 = 38,880.29/x
  3. Step 3: Cross multiply
    83,259.99x = 124,930.98 × 38,880.29
  4. Step 4: Simplify right side
    83,259.99x = 4,857,352,107.73
  5. Step 5: Solve for x
    x = 4,857,352,107.73/83,259.99
  6. Step 6: Final answer
    x = 58,339.57

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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.