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Finding the Fourth Proportional to 57,246.72, 78,993 and 33,377.64

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Solution

The fourth proportional to 57,246.72, 78,993 and 33,377.64 is: 46,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246.72 : 78,993 = 33,377.64 : x
  2. Step 2: Convert to fraction form
    57,246.72/78,993 = 33,377.64/x
  3. Step 3: Cross multiply
    57,246.72x = 78,993 × 33,377.64
  4. Step 4: Simplify right side
    57,246.72x = 2,636,599,916.52
  5. Step 5: Solve for x
    x = 2,636,599,916.52/57,246.72
  6. Step 6: Final answer
    x = 46,056.79

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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.