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Finding the Fourth Proportional to 54,187.92, 74,804.90 and 40,764.29

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Solution

The fourth proportional to 54,187.92, 74,804.90 and 40,764.29 is: 56,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,187.92 : 74,804.90 = 40,764.29 : x
  2. Step 2: Convert to fraction form
    54,187.92/74,804.90 = 40,764.29/x
  3. Step 3: Cross multiply
    54,187.92x = 74,804.90 × 40,764.29
  4. Step 4: Simplify right side
    54,187.92x = 3,049,368,059.18
  5. Step 5: Solve for x
    x = 3,049,368,059.18/54,187.92
  6. Step 6: Final answer
    x = 56,273.95

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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.