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Finding the Fourth Proportional to 57,373.92, 86,047.88 and 21,822.60

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Solution

The fourth proportional to 57,373.92, 86,047.88 and 21,822.60 is: 32,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,373.92 : 86,047.88 = 21,822.60 : x
  2. Step 2: Convert to fraction form
    57,373.92/86,047.88 = 21,822.60/x
  3. Step 3: Cross multiply
    57,373.92x = 86,047.88 × 21,822.60
  4. Step 4: Simplify right side
    57,373.92x = 1,877,788,466.09
  5. Step 5: Solve for x
    x = 1,877,788,466.09/57,373.92
  6. Step 6: Final answer
    x = 32,728.96

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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.