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Finding the Fourth Proportional to 8,833.49, 12,191.30 and 5,107.49

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Solution

The fourth proportional to 8,833.49, 12,191.30 and 5,107.49 is: 7,048.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.49 : 12,191.30 = 5,107.49 : x
  2. Step 2: Convert to fraction form
    8,833.49/12,191.30 = 5,107.49/x
  3. Step 3: Cross multiply
    8,833.49x = 12,191.30 × 5,107.49
  4. Step 4: Simplify right side
    8,833.49x = 62,266,942.84
  5. Step 5: Solve for x
    x = 62,266,942.84/8,833.49
  6. Step 6: Final answer
    x = 7,048.96

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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.