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Finding the Fourth Proportional to 12,126.00, 16,734.65 and 7,349.23

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Solution

The fourth proportional to 12,126.00, 16,734.65 and 7,349.23 is: 10,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126.00 : 16,734.65 = 7,349.23 : x
  2. Step 2: Convert to fraction form
    12,126.00/16,734.65 = 7,349.23/x
  3. Step 3: Cross multiply
    12,126.00x = 16,734.65 × 7,349.23
  4. Step 4: Simplify right side
    12,126.00x = 122,986,817.33
  5. Step 5: Solve for x
    x = 122,986,817.33/12,126.00
  6. Step 6: Final answer
    x = 10,142.40

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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.