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Finding the Fourth Proportional to 68,612.72, 103,013.53 and 34,901.56

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Solution

The fourth proportional to 68,612.72, 103,013.53 and 34,901.56 is: 52,400.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,612.72 : 103,013.53 = 34,901.56 : x
  2. Step 2: Convert to fraction form
    68,612.72/103,013.53 = 34,901.56/x
  3. Step 3: Cross multiply
    68,612.72x = 103,013.53 × 34,901.56
  4. Step 4: Simplify right side
    68,612.72x = 3,595,332,383.04
  5. Step 5: Solve for x
    x = 3,595,332,383.04/68,612.72
  6. Step 6: Final answer
    x = 52,400.38

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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.