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Finding the Fourth Proportional to 13,043.62, 17,995.29 and 9,648.76

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Solution

The fourth proportional to 13,043.62, 17,995.29 and 9,648.76 is: 13,311.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,043.62 : 17,995.29 = 9,648.76 : x
  2. Step 2: Convert to fraction form
    13,043.62/17,995.29 = 9,648.76/x
  3. Step 3: Cross multiply
    13,043.62x = 17,995.29 × 9,648.76
  4. Step 4: Simplify right side
    13,043.62x = 173,632,234.34
  5. Step 5: Solve for x
    x = 173,632,234.34/13,043.62
  6. Step 6: Final answer
    x = 13,311.66

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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.