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Finding the Fourth Proportional to 60,578.45, 90,882.05 and 19,025.45

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Solution

The fourth proportional to 60,578.45, 90,882.05 and 19,025.45 is: 28,542.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,578.45 : 90,882.05 = 19,025.45 : x
  2. Step 2: Convert to fraction form
    60,578.45/90,882.05 = 19,025.45/x
  3. Step 3: Cross multiply
    60,578.45x = 90,882.05 × 19,025.45
  4. Step 4: Simplify right side
    60,578.45x = 1,729,071,348.64
  5. Step 5: Solve for x
    x = 1,729,071,348.64/60,578.45
  6. Step 6: Final answer
    x = 28,542.68

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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.