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Finding the Fourth Proportional to 10,904.75, 15,049.02 and 6,189.47

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Solution

The fourth proportional to 10,904.75, 15,049.02 and 6,189.47 is: 8,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.75 : 15,049.02 = 6,189.47 : x
  2. Step 2: Convert to fraction form
    10,904.75/15,049.02 = 6,189.47/x
  3. Step 3: Cross multiply
    10,904.75x = 15,049.02 × 6,189.47
  4. Step 4: Simplify right side
    10,904.75x = 93,145,382.57
  5. Step 5: Solve for x
    x = 93,145,382.57/10,904.75
  6. Step 6: Final answer
    x = 8,541.73

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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.