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Finding the Fourth Proportional to 69,620.40, 96,074.88 and 37,788.96

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Solution

The fourth proportional to 69,620.40, 96,074.88 and 37,788.96 is: 52,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,620.40 : 96,074.88 = 37,788.96 : x
  2. Step 2: Convert to fraction form
    69,620.40/96,074.88 = 37,788.96/x
  3. Step 3: Cross multiply
    69,620.40x = 96,074.88 × 37,788.96
  4. Step 4: Simplify right side
    69,620.40x = 3,630,569,797.32
  5. Step 5: Solve for x
    x = 3,630,569,797.32/69,620.40
  6. Step 6: Final answer
    x = 52,148.07

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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.