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Finding the Fourth Proportional to 8,167.30, 12,243.54 and 2,969.50

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Solution

The fourth proportional to 8,167.30, 12,243.54 and 2,969.50 is: 4,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.30 : 12,243.54 = 2,969.50 : x
  2. Step 2: Convert to fraction form
    8,167.30/12,243.54 = 2,969.50/x
  3. Step 3: Cross multiply
    8,167.30x = 12,243.54 × 2,969.50
  4. Step 4: Simplify right side
    8,167.30x = 36,357,192.03
  5. Step 5: Solve for x
    x = 36,357,192.03/8,167.30
  6. Step 6: Final answer
    x = 4,451.56

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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.