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Finding the Fourth Proportional to 6,878.59, 10,318.79 and 2,498.11

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Solution

The fourth proportional to 6,878.59, 10,318.79 and 2,498.11 is: 3,747.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.59 : 10,318.79 = 2,498.11 : x
  2. Step 2: Convert to fraction form
    6,878.59/10,318.79 = 2,498.11/x
  3. Step 3: Cross multiply
    6,878.59x = 10,318.79 × 2,498.11
  4. Step 4: Simplify right side
    6,878.59x = 25,777,472.49
  5. Step 5: Solve for x
    x = 25,777,472.49/6,878.59
  6. Step 6: Final answer
    x = 3,747.49

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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.