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Finding the Fourth Proportional to 62,178.72, 85,807.68 and 33,884.40

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Solution

The fourth proportional to 62,178.72, 85,807.68 and 33,884.40 is: 46,761.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,178.72 : 85,807.68 = 33,884.40 : x
  2. Step 2: Convert to fraction form
    62,178.72/85,807.68 = 33,884.40/x
  3. Step 3: Cross multiply
    62,178.72x = 85,807.68 × 33,884.40
  4. Step 4: Simplify right side
    62,178.72x = 2,907,541,752.19
  5. Step 5: Solve for x
    x = 2,907,541,752.19/62,178.72
  6. Step 6: Final answer
    x = 46,761.04

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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.