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Finding the Fourth Proportional to 60,499.53, 90,687.33 and 21,035.12

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Solution

The fourth proportional to 60,499.53, 90,687.33 and 21,035.12 is: 31,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,499.53 : 90,687.33 = 21,035.12 : x
  2. Step 2: Convert to fraction form
    60,499.53/90,687.33 = 21,035.12/x
  3. Step 3: Cross multiply
    60,499.53x = 90,687.33 × 21,035.12
  4. Step 4: Simplify right side
    60,499.53x = 1,907,618,415.59
  5. Step 5: Solve for x
    x = 1,907,618,415.59/60,499.53
  6. Step 6: Final answer
    x = 31,531.13

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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.