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Finding the Fourth Proportional to 8,659.88, 11,957.03 and 5,307.27

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Solution

The fourth proportional to 8,659.88, 11,957.03 and 5,307.27 is: 7,327.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659.88 : 11,957.03 = 5,307.27 : x
  2. Step 2: Convert to fraction form
    8,659.88/11,957.03 = 5,307.27/x
  3. Step 3: Cross multiply
    8,659.88x = 11,957.03 × 5,307.27
  4. Step 4: Simplify right side
    8,659.88x = 63,459,186.61
  5. Step 5: Solve for x
    x = 63,459,186.61/8,659.88
  6. Step 6: Final answer
    x = 7,327.95

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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.