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Finding the Fourth Proportional to 13,047.14, 18,003.52 and 7,382.54

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Solution

The fourth proportional to 13,047.14, 18,003.52 and 7,382.54 is: 10,187.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.14 : 18,003.52 = 7,382.54 : x
  2. Step 2: Convert to fraction form
    13,047.14/18,003.52 = 7,382.54/x
  3. Step 3: Cross multiply
    13,047.14x = 18,003.52 × 7,382.54
  4. Step 4: Simplify right side
    13,047.14x = 132,911,706.54
  5. Step 5: Solve for x
    x = 132,911,706.54/13,047.14
  6. Step 6: Final answer
    x = 10,187.04

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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.