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Finding the Fourth Proportional to 73,043.32, 100,799.82 and 39,509.32

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Solution

The fourth proportional to 73,043.32, 100,799.82 and 39,509.32 is: 54,522.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,043.32 : 100,799.82 = 39,509.32 : x
  2. Step 2: Convert to fraction form
    73,043.32/100,799.82 = 39,509.32/x
  3. Step 3: Cross multiply
    73,043.32x = 100,799.82 × 39,509.32
  4. Step 4: Simplify right side
    73,043.32x = 3,982,532,344.32
  5. Step 5: Solve for x
    x = 3,982,532,344.32/73,043.32
  6. Step 6: Final answer
    x = 54,522.88

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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.