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Finding the Fourth Proportional to 65,248.64, 90,040.11 and 36,954.53

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Solution

The fourth proportional to 65,248.64, 90,040.11 and 36,954.53 is: 50,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,248.64 : 90,040.11 = 36,954.53 : x
  2. Step 2: Convert to fraction form
    65,248.64/90,040.11 = 36,954.53/x
  3. Step 3: Cross multiply
    65,248.64x = 90,040.11 × 36,954.53
  4. Step 4: Simplify right side
    65,248.64x = 3,327,389,946.20
  5. Step 5: Solve for x
    x = 3,327,389,946.20/65,248.64
  6. Step 6: Final answer
    x = 50,995.54

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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.