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Finding the Fourth Proportional to 35,876.52, 53,822.97 and 10,920.11

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Solution

The fourth proportional to 35,876.52, 53,822.97 and 10,920.11 is: 16,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,876.52 : 53,822.97 = 10,920.11 : x
  2. Step 2: Convert to fraction form
    35,876.52/53,822.97 = 10,920.11/x
  3. Step 3: Cross multiply
    35,876.52x = 53,822.97 × 10,920.11
  4. Step 4: Simplify right side
    35,876.52x = 587,752,483.81
  5. Step 5: Solve for x
    x = 587,752,483.81/35,876.52
  6. Step 6: Final answer
    x = 16,382.65

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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.