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Finding the Fourth Proportional to 62,251.88, 93,378.63 and 20,698.88

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Solution

The fourth proportional to 62,251.88, 93,378.63 and 20,698.88 is: 31,048.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,251.88 : 93,378.63 = 20,698.88 : x
  2. Step 2: Convert to fraction form
    62,251.88/93,378.63 = 20,698.88/x
  3. Step 3: Cross multiply
    62,251.88x = 93,378.63 × 20,698.88
  4. Step 4: Simplify right side
    62,251.88x = 1,932,832,486.55
  5. Step 5: Solve for x
    x = 1,932,832,486.55/62,251.88
  6. Step 6: Final answer
    x = 31,048.58

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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.