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Finding the Fourth Proportional to 57,089.57, 78,858.90 and 43,824.74

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Solution

The fourth proportional to 57,089.57, 78,858.90 and 43,824.74 is: 60,535.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,089.57 : 78,858.90 = 43,824.74 : x
  2. Step 2: Convert to fraction form
    57,089.57/78,858.90 = 43,824.74/x
  3. Step 3: Cross multiply
    57,089.57x = 78,858.90 × 43,824.74
  4. Step 4: Simplify right side
    57,089.57x = 3,455,970,394.89
  5. Step 5: Solve for x
    x = 3,455,970,394.89/57,089.57
  6. Step 6: Final answer
    x = 60,535.94

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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.