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Finding the Fourth Proportional to 12,079.50, 16,674.24 and 7,045.29

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Solution

The fourth proportional to 12,079.50, 16,674.24 and 7,045.29 is: 9,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.50 : 16,674.24 = 7,045.29 : x
  2. Step 2: Convert to fraction form
    12,079.50/16,674.24 = 7,045.29/x
  3. Step 3: Cross multiply
    12,079.50x = 16,674.24 × 7,045.29
  4. Step 4: Simplify right side
    12,079.50x = 117,474,856.33
  5. Step 5: Solve for x
    x = 117,474,856.33/12,079.50
  6. Step 6: Final answer
    x = 9,725.14

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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.