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Finding the Fourth Proportional to 22,407.16, 33,595.02 and 9,920.41

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Solution

The fourth proportional to 22,407.16, 33,595.02 and 9,920.41 is: 14,873.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,407.16 : 33,595.02 = 9,920.41 : x
  2. Step 2: Convert to fraction form
    22,407.16/33,595.02 = 9,920.41/x
  3. Step 3: Cross multiply
    22,407.16x = 33,595.02 × 9,920.41
  4. Step 4: Simplify right side
    22,407.16x = 333,276,372.36
  5. Step 5: Solve for x
    x = 333,276,372.36/22,407.16
  6. Step 6: Final answer
    x = 14,873.66

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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.