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Finding the Fourth Proportional to 3,965.34, 5,947.56 and 1,043.88

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Solution

The fourth proportional to 3,965.34, 5,947.56 and 1,043.88 is: 1,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.34 : 5,947.56 = 1,043.88 : x
  2. Step 2: Convert to fraction form
    3,965.34/5,947.56 = 1,043.88/x
  3. Step 3: Cross multiply
    3,965.34x = 5,947.56 × 1,043.88
  4. Step 4: Simplify right side
    3,965.34x = 6,208,538.93
  5. Step 5: Solve for x
    x = 6,208,538.93/3,965.34
  6. Step 6: Final answer
    x = 1,565.70

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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.