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Finding the Fourth Proportional to 83,593.35, 115,358.81 and 47,784.13

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Solution

The fourth proportional to 83,593.35, 115,358.81 and 47,784.13 is: 65,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,593.35 : 115,358.81 = 47,784.13 : x
  2. Step 2: Convert to fraction form
    83,593.35/115,358.81 = 47,784.13/x
  3. Step 3: Cross multiply
    83,593.35x = 115,358.81 × 47,784.13
  4. Step 4: Simplify right side
    83,593.35x = 5,512,320,204.75
  5. Step 5: Solve for x
    x = 5,512,320,204.75/83,593.35
  6. Step 6: Final answer
    x = 65,942.09

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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.