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Finding the Fourth Proportional to 22,491.78, 33,741.78 and 9,345.18

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Solution

The fourth proportional to 22,491.78, 33,741.78 and 9,345.18 is: 14,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,491.78 : 33,741.78 = 9,345.18 : x
  2. Step 2: Convert to fraction form
    22,491.78/33,741.78 = 9,345.18/x
  3. Step 3: Cross multiply
    22,491.78x = 33,741.78 × 9,345.18
  4. Step 4: Simplify right side
    22,491.78x = 315,323,007.62
  5. Step 5: Solve for x
    x = 315,323,007.62/22,491.78
  6. Step 6: Final answer
    x = 14,019.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.