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Finding the Fourth Proportional to 6,878.34, 9,494.35 and 4,045.57

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Solution

The fourth proportional to 6,878.34, 9,494.35 and 4,045.57 is: 5,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.34 : 9,494.35 = 4,045.57 : x
  2. Step 2: Convert to fraction form
    6,878.34/9,494.35 = 4,045.57/x
  3. Step 3: Cross multiply
    6,878.34x = 9,494.35 × 4,045.57
  4. Step 4: Simplify right side
    6,878.34x = 38,410,067.45
  5. Step 5: Solve for x
    x = 38,410,067.45/6,878.34
  6. Step 6: Final answer
    x = 5,584.20

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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.