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Finding the Fourth Proportional to 57,616.31, 79,478.21 and 33,738.32

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Solution

The fourth proportional to 57,616.31, 79,478.21 and 33,738.32 is: 46,539.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,616.31 : 79,478.21 = 33,738.32 : x
  2. Step 2: Convert to fraction form
    57,616.31/79,478.21 = 33,738.32/x
  3. Step 3: Cross multiply
    57,616.31x = 79,478.21 × 33,738.32
  4. Step 4: Simplify right side
    57,616.31x = 2,681,461,565.05
  5. Step 5: Solve for x
    x = 2,681,461,565.05/57,616.31
  6. Step 6: Final answer
    x = 46,539.97

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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.