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Finding the Fourth Proportional to 57,707.37, 86,569.70 and 18,251.37

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Solution

The fourth proportional to 57,707.37, 86,569.70 and 18,251.37 is: 27,379.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,707.37 : 86,569.70 = 18,251.37 : x
  2. Step 2: Convert to fraction form
    57,707.37/86,569.70 = 18,251.37/x
  3. Step 3: Cross multiply
    57,707.37x = 86,569.70 × 18,251.37
  4. Step 4: Simplify right side
    57,707.37x = 1,580,015,534.23
  5. Step 5: Solve for x
    x = 1,580,015,534.23/57,707.37
  6. Step 6: Final answer
    x = 27,379.79

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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.