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Finding the Fourth Proportional to 57,424.96, 86,120.80 and 22,356.80

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Solution

The fourth proportional to 57,424.96, 86,120.80 and 22,356.80 is: 33,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,424.96 : 86,120.80 = 22,356.80 : x
  2. Step 2: Convert to fraction form
    57,424.96/86,120.80 = 22,356.80/x
  3. Step 3: Cross multiply
    57,424.96x = 86,120.80 × 22,356.80
  4. Step 4: Simplify right side
    57,424.96x = 1,925,385,501.44
  5. Step 5: Solve for x
    x = 1,925,385,501.44/57,424.96
  6. Step 6: Final answer
    x = 33,528.72

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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.