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Finding the Fourth Proportional to 57,167.76, 78,893.92 and 33,290.58

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Solution

The fourth proportional to 57,167.76, 78,893.92 and 33,290.58 is: 45,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,167.76 : 78,893.92 = 33,290.58 : x
  2. Step 2: Convert to fraction form
    57,167.76/78,893.92 = 33,290.58/x
  3. Step 3: Cross multiply
    57,167.76x = 78,893.92 × 33,290.58
  4. Step 4: Simplify right side
    57,167.76x = 2,626,424,355.27
  5. Step 5: Solve for x
    x = 2,626,424,355.27/57,167.76
  6. Step 6: Final answer
    x = 45,942.40

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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.