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Finding the Fourth Proportional to 62,881.78, 94,332.05 and 20,766.32

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Solution

The fourth proportional to 62,881.78, 94,332.05 and 20,766.32 is: 31,152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,881.78 : 94,332.05 = 20,766.32 : x
  2. Step 2: Convert to fraction form
    62,881.78/94,332.05 = 20,766.32/x
  3. Step 3: Cross multiply
    62,881.78x = 94,332.05 × 20,766.32
  4. Step 4: Simplify right side
    62,881.78x = 1,958,929,432.72
  5. Step 5: Solve for x
    x = 1,958,929,432.72/62,881.78
  6. Step 6: Final answer
    x = 31,152.58

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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.