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Finding the Fourth Proportional to 8,951.16, 13,426.88 and 3,107.96

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Solution

The fourth proportional to 8,951.16, 13,426.88 and 3,107.96 is: 4,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.16 : 13,426.88 = 3,107.96 : x
  2. Step 2: Convert to fraction form
    8,951.16/13,426.88 = 3,107.96/x
  3. Step 3: Cross multiply
    8,951.16x = 13,426.88 × 3,107.96
  4. Step 4: Simplify right side
    8,951.16x = 41,730,123.29
  5. Step 5: Solve for x
    x = 41,730,123.29/8,951.16
  6. Step 6: Final answer
    x = 4,661.98

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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.