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Finding the Fourth Proportional to 57,633.89, 79,541.21 and 33,780.74

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Solution

The fourth proportional to 57,633.89, 79,541.21 and 33,780.74 is: 46,621.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,633.89 : 79,541.21 = 33,780.74 : x
  2. Step 2: Convert to fraction form
    57,633.89/79,541.21 = 33,780.74/x
  3. Step 3: Cross multiply
    57,633.89x = 79,541.21 × 33,780.74
  4. Step 4: Simplify right side
    57,633.89x = 2,686,960,765.39
  5. Step 5: Solve for x
    x = 2,686,960,765.39/57,633.89
  6. Step 6: Final answer
    x = 46,621.19

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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.