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Finding the Fourth Proportional to 83,372.84, 115,043.68 and 47,560.71

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Solution

The fourth proportional to 83,372.84, 115,043.68 and 47,560.71 is: 65,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,372.84 : 115,043.68 = 47,560.71 : x
  2. Step 2: Convert to fraction form
    83,372.84/115,043.68 = 47,560.71/x
  3. Step 3: Cross multiply
    83,372.84x = 115,043.68 × 47,560.71
  4. Step 4: Simplify right side
    83,372.84x = 5,471,559,101.81
  5. Step 5: Solve for x
    x = 5,471,559,101.81/83,372.84
  6. Step 6: Final answer
    x = 65,627.60

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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.