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Finding the Fourth Proportional to 6,881.52, 9,497.88 and 4,086.48

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Solution

The fourth proportional to 6,881.52, 9,497.88 and 4,086.48 is: 5,640.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.52 : 9,497.88 = 4,086.48 : x
  2. Step 2: Convert to fraction form
    6,881.52/9,497.88 = 4,086.48/x
  3. Step 3: Cross multiply
    6,881.52x = 9,497.88 × 4,086.48
  4. Step 4: Simplify right side
    6,881.52x = 38,812,896.66
  5. Step 5: Solve for x
    x = 38,812,896.66/6,881.52
  6. Step 6: Final answer
    x = 5,640.16

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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.