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Finding the Fourth Proportional to 54,273.86, 74,895.74 and 30,399.31

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Solution

The fourth proportional to 54,273.86, 74,895.74 and 30,399.31 is: 41,949.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,273.86 : 74,895.74 = 30,399.31 : x
  2. Step 2: Convert to fraction form
    54,273.86/74,895.74 = 30,399.31/x
  3. Step 3: Cross multiply
    54,273.86x = 74,895.74 × 30,399.31
  4. Step 4: Simplify right side
    54,273.86x = 2,276,778,443.46
  5. Step 5: Solve for x
    x = 2,276,778,443.46/54,273.86
  6. Step 6: Final answer
    x = 41,949.82

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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.