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Finding the Fourth Proportional to 60,480.53, 90,721.04 and 18,360.99

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Solution

The fourth proportional to 60,480.53, 90,721.04 and 18,360.99 is: 27,541.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,480.53 : 90,721.04 = 18,360.99 : x
  2. Step 2: Convert to fraction form
    60,480.53/90,721.04 = 18,360.99/x
  3. Step 3: Cross multiply
    60,480.53x = 90,721.04 × 18,360.99
  4. Step 4: Simplify right side
    60,480.53x = 1,665,728,016.42
  5. Step 5: Solve for x
    x = 1,665,728,016.42/60,480.53
  6. Step 6: Final answer
    x = 27,541.56

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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.