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Finding the Fourth Proportional to 55,708.59, 83,556.94 and 15,726.59

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Solution

The fourth proportional to 55,708.59, 83,556.94 and 15,726.59 is: 23,588.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,708.59 : 83,556.94 = 15,726.59 : x
  2. Step 2: Convert to fraction form
    55,708.59/83,556.94 = 15,726.59/x
  3. Step 3: Cross multiply
    55,708.59x = 83,556.94 × 15,726.59
  4. Step 4: Simplify right side
    55,708.59x = 1,314,065,737.03
  5. Step 5: Solve for x
    x = 1,314,065,737.03/55,708.59
  6. Step 6: Final answer
    x = 23,588.21

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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.