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Finding the Fourth Proportional to 79,437.92, 109,563.62 and 53,963.92

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Solution

The fourth proportional to 79,437.92, 109,563.62 and 53,963.92 is: 74,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,437.92 : 109,563.62 = 53,963.92 : x
  2. Step 2: Convert to fraction form
    79,437.92/109,563.62 = 53,963.92/x
  3. Step 3: Cross multiply
    79,437.92x = 109,563.62 × 53,963.92
  4. Step 4: Simplify right side
    79,437.92x = 5,912,482,424.59
  5. Step 5: Solve for x
    x = 5,912,482,424.59/79,437.92
  6. Step 6: Final answer
    x = 74,428.97

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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.