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Finding the Fourth Proportional to 83,593.53, 115,359.08 and 47,784.32

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Solution

The fourth proportional to 83,593.53, 115,359.08 and 47,784.32 is: 65,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,593.53 : 115,359.08 = 47,784.32 : x
  2. Step 2: Convert to fraction form
    83,593.53/115,359.08 = 47,784.32/x
  3. Step 3: Cross multiply
    83,593.53x = 115,359.08 × 47,784.32
  4. Step 4: Simplify right side
    83,593.53x = 5,512,354,377.91
  5. Step 5: Solve for x
    x = 5,512,354,377.91/83,593.53
  6. Step 6: Final answer
    x = 65,942.36

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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.