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Finding the Fourth Proportional to 57,799.70, 86,699.55 and 43,111.70

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Solution

The fourth proportional to 57,799.70, 86,699.55 and 43,111.70 is: 64,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,799.70 : 86,699.55 = 43,111.70 : x
  2. Step 2: Convert to fraction form
    57,799.70/86,699.55 = 43,111.70/x
  3. Step 3: Cross multiply
    57,799.70x = 86,699.55 × 43,111.70
  4. Step 4: Simplify right side
    57,799.70x = 3,737,764,989.74
  5. Step 5: Solve for x
    x = 3,737,764,989.74/57,799.70
  6. Step 6: Final answer
    x = 64,667.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.