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Finding the Fourth Proportional to 8,658.88, 11,954.72 and 6,005.36

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Solution

The fourth proportional to 8,658.88, 11,954.72 and 6,005.36 is: 8,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.88 : 11,954.72 = 6,005.36 : x
  2. Step 2: Convert to fraction form
    8,658.88/11,954.72 = 6,005.36/x
  3. Step 3: Cross multiply
    8,658.88x = 11,954.72 × 6,005.36
  4. Step 4: Simplify right side
    8,658.88x = 71,792,397.30
  5. Step 5: Solve for x
    x = 71,792,397.30/8,658.88
  6. Step 6: Final answer
    x = 8,291.19

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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.