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Finding the Fourth Proportional to 54,162.62, 74,754.74 and 36,288.78

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Solution

The fourth proportional to 54,162.62, 74,754.74 and 36,288.78 is: 50,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,162.62 : 74,754.74 = 36,288.78 : x
  2. Step 2: Convert to fraction form
    54,162.62/74,754.74 = 36,288.78/x
  3. Step 3: Cross multiply
    54,162.62x = 74,754.74 × 36,288.78
  4. Step 4: Simplify right side
    54,162.62x = 2,712,758,313.82
  5. Step 5: Solve for x
    x = 2,712,758,313.82/54,162.62
  6. Step 6: Final answer
    x = 50,085.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.