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Finding the Fourth Proportional to 9,167.80, 13,751.70 and 5,887.30

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Solution

The fourth proportional to 9,167.80, 13,751.70 and 5,887.30 is: 8,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.80 : 13,751.70 = 5,887.30 : x
  2. Step 2: Convert to fraction form
    9,167.80/13,751.70 = 5,887.30/x
  3. Step 3: Cross multiply
    9,167.80x = 13,751.70 × 5,887.30
  4. Step 4: Simplify right side
    9,167.80x = 80,960,383.41
  5. Step 5: Solve for x
    x = 80,960,383.41/9,167.80
  6. Step 6: Final answer
    x = 8,830.95

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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.