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Finding the Fourth Proportional to 8,658.88, 11,955.65 and 5,306.27

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Solution

The fourth proportional to 8,658.88, 11,955.65 and 5,306.27 is: 7,326.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.88 : 11,955.65 = 5,306.27 : x
  2. Step 2: Convert to fraction form
    8,658.88/11,955.65 = 5,306.27/x
  3. Step 3: Cross multiply
    8,658.88x = 11,955.65 × 5,306.27
  4. Step 4: Simplify right side
    8,658.88x = 63,439,906.93
  5. Step 5: Solve for x
    x = 63,439,906.93/8,658.88
  6. Step 6: Final answer
    x = 7,326.58

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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.