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Finding the Fourth Proportional to 13,042.38, 17,998.48 and 7,453.38

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Solution

The fourth proportional to 13,042.38, 17,998.48 and 7,453.38 is: 10,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.38 : 17,998.48 = 7,453.38 : x
  2. Step 2: Convert to fraction form
    13,042.38/17,998.48 = 7,453.38/x
  3. Step 3: Cross multiply
    13,042.38x = 17,998.48 × 7,453.38
  4. Step 4: Simplify right side
    13,042.38x = 134,149,510.86
  5. Step 5: Solve for x
    x = 134,149,510.86/13,042.38
  6. Step 6: Final answer
    x = 10,285.66

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Half scale
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Double scale
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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.