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Finding the Fourth Proportional to 60,589.20, 90,879.48 and 19,048.08

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Solution

The fourth proportional to 60,589.20, 90,879.48 and 19,048.08 is: 28,570.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,589.20 : 90,879.48 = 19,048.08 : x
  2. Step 2: Convert to fraction form
    60,589.20/90,879.48 = 19,048.08/x
  3. Step 3: Cross multiply
    60,589.20x = 90,879.48 × 19,048.08
  4. Step 4: Simplify right side
    60,589.20x = 1,731,079,605.40
  5. Step 5: Solve for x
    x = 1,731,079,605.40/60,589.20
  6. Step 6: Final answer
    x = 28,570.76

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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.