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Finding the Fourth Proportional to 60,441.74, 90,663.29 and 18,321.49

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Solution

The fourth proportional to 60,441.74, 90,663.29 and 18,321.49 is: 27,482.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,441.74 : 90,663.29 = 18,321.49 : x
  2. Step 2: Convert to fraction form
    60,441.74/90,663.29 = 18,321.49/x
  3. Step 3: Cross multiply
    60,441.74x = 90,663.29 × 18,321.49
  4. Step 4: Simplify right side
    60,441.74x = 1,661,086,107.79
  5. Step 5: Solve for x
    x = 1,661,086,107.79/60,441.74
  6. Step 6: Final answer
    x = 27,482.43

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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.