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Finding the Fourth Proportional to 12,040.40, 16,614.98 and 6,734.30

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Solution

The fourth proportional to 12,040.40, 16,614.98 and 6,734.30 is: 9,292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.40 : 16,614.98 = 6,734.30 : x
  2. Step 2: Convert to fraction form
    12,040.40/16,614.98 = 6,734.30/x
  3. Step 3: Cross multiply
    12,040.40x = 16,614.98 × 6,734.30
  4. Step 4: Simplify right side
    12,040.40x = 111,890,259.81
  5. Step 5: Solve for x
    x = 111,890,259.81/12,040.40
  6. Step 6: Final answer
    x = 9,292.90

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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.