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Finding the Fourth Proportional to 22,205.63, 33,308.45 and 7,411.19

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Solution

The fourth proportional to 22,205.63, 33,308.45 and 7,411.19 is: 11,116.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.63 : 33,308.45 = 7,411.19 : x
  2. Step 2: Convert to fraction form
    22,205.63/33,308.45 = 7,411.19/x
  3. Step 3: Cross multiply
    22,205.63x = 33,308.45 × 7,411.19
  4. Step 4: Simplify right side
    22,205.63x = 246,855,047.96
  5. Step 5: Solve for x
    x = 246,855,047.96/22,205.63
  6. Step 6: Final answer
    x = 11,116.78

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.