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Finding the Fourth Proportional to 60,441.75, 90,665.87 and 18,891.99

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Solution

The fourth proportional to 60,441.75, 90,665.87 and 18,891.99 is: 28,339.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,441.75 : 90,665.87 = 18,891.99 : x
  2. Step 2: Convert to fraction form
    60,441.75/90,665.87 = 18,891.99/x
  3. Step 3: Cross multiply
    60,441.75x = 90,665.87 × 18,891.99
  4. Step 4: Simplify right side
    60,441.75x = 1,712,858,614.92
  5. Step 5: Solve for x
    x = 1,712,858,614.92/60,441.75
  6. Step 6: Final answer
    x = 28,339.00

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1.5x scale

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.