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Finding the Fourth Proportional to 6,359.97, 8,780.40 and 4,473.48

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Solution

The fourth proportional to 6,359.97, 8,780.40 and 4,473.48 is: 6,175.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,359.97 : 8,780.40 = 4,473.48 : x
  2. Step 2: Convert to fraction form
    6,359.97/8,780.40 = 4,473.48/x
  3. Step 3: Cross multiply
    6,359.97x = 8,780.40 × 4,473.48
  4. Step 4: Simplify right side
    6,359.97x = 39,278,943.79
  5. Step 5: Solve for x
    x = 39,278,943.79/6,359.97
  6. Step 6: Final answer
    x = 6,175.96

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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.