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Finding the Fourth Proportional to 6,789.62, 9,315.89 and 6,673.14

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Solution

The fourth proportional to 6,789.62, 9,315.89 and 6,673.14 is: 9,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789.62 : 9,315.89 = 6,673.14 : x
  2. Step 2: Convert to fraction form
    6,789.62/9,315.89 = 6,673.14/x
  3. Step 3: Cross multiply
    6,789.62x = 9,315.89 × 6,673.14
  4. Step 4: Simplify right side
    6,789.62x = 62,166,204.83
  5. Step 5: Solve for x
    x = 62,166,204.83/6,789.62
  6. Step 6: Final answer
    x = 9,156.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.