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Finding the Fourth Proportional to 55,791.57, 83,669.58 and 18,342.99

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Solution

The fourth proportional to 55,791.57, 83,669.58 and 18,342.99 is: 27,508.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,791.57 : 83,669.58 = 18,342.99 : x
  2. Step 2: Convert to fraction form
    55,791.57/83,669.58 = 18,342.99/x
  3. Step 3: Cross multiply
    55,791.57x = 83,669.58 × 18,342.99
  4. Step 4: Simplify right side
    55,791.57x = 1,534,750,269.24
  5. Step 5: Solve for x
    x = 1,534,750,269.24/55,791.57
  6. Step 6: Final answer
    x = 27,508.64

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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.