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Finding the Fourth Proportional to 15,959.00, 22,021.49 and 9,243.69

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Solution

The fourth proportional to 15,959.00, 22,021.49 and 9,243.69 is: 12,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,959.00 : 22,021.49 = 9,243.69 : x
  2. Step 2: Convert to fraction form
    15,959.00/22,021.49 = 9,243.69/x
  3. Step 3: Cross multiply
    15,959.00x = 22,021.49 × 9,243.69
  4. Step 4: Simplify right side
    15,959.00x = 203,559,780.68
  5. Step 5: Solve for x
    x = 203,559,780.68/15,959.00
  6. Step 6: Final answer
    x = 12,755.18

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Half scale
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Double scale
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Similar ratio
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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.