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Finding the Fourth Proportional to 55,781.54, 83,661.56 and 15,800.22

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Solution

The fourth proportional to 55,781.54, 83,661.56 and 15,800.22 is: 23,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,781.54 : 83,661.56 = 15,800.22 : x
  2. Step 2: Convert to fraction form
    55,781.54/83,661.56 = 15,800.22/x
  3. Step 3: Cross multiply
    55,781.54x = 83,661.56 × 15,800.22
  4. Step 4: Simplify right side
    55,781.54x = 1,321,870,974.54
  5. Step 5: Solve for x
    x = 1,321,870,974.54/55,781.54
  6. Step 6: Final answer
    x = 23,697.29

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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.