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Finding the Fourth Proportional to 6,648.48, 9,943.28 and 5,913.28

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Solution

The fourth proportional to 6,648.48, 9,943.28 and 5,913.28 is: 8,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.48 : 9,943.28 = 5,913.28 : x
  2. Step 2: Convert to fraction form
    6,648.48/9,943.28 = 5,913.28/x
  3. Step 3: Cross multiply
    6,648.48x = 9,943.28 × 5,913.28
  4. Step 4: Simplify right side
    6,648.48x = 58,797,392.46
  5. Step 5: Solve for x
    x = 58,797,392.46/6,648.48
  6. Step 6: Final answer
    x = 8,843.73

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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.