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Finding the Fourth Proportional to 6,877.39, 9,488.63 and 4,043.86

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Solution

The fourth proportional to 6,877.39, 9,488.63 and 4,043.86 is: 5,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,877.39 : 9,488.63 = 4,043.86 : x
  2. Step 2: Convert to fraction form
    6,877.39/9,488.63 = 4,043.86/x
  3. Step 3: Cross multiply
    6,877.39x = 9,488.63 × 4,043.86
  4. Step 4: Simplify right side
    6,877.39x = 38,370,691.31
  5. Step 5: Solve for x
    x = 38,370,691.31/6,877.39
  6. Step 6: Final answer
    x = 5,579.25

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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.