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Finding the Fourth Proportional to 57,776.50, 79,732.10 and 33,903.56

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Solution

The fourth proportional to 57,776.50, 79,732.10 and 33,903.56 is: 46,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,776.50 : 79,732.10 = 33,903.56 : x
  2. Step 2: Convert to fraction form
    57,776.50/79,732.10 = 33,903.56/x
  3. Step 3: Cross multiply
    57,776.50x = 79,732.10 × 33,903.56
  4. Step 4: Simplify right side
    57,776.50x = 2,703,202,036.28
  5. Step 5: Solve for x
    x = 2,703,202,036.28/57,776.50
  6. Step 6: Final answer
    x = 46,787.22

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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.