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Finding the Fourth Proportional to 55,777.18, 83,648.04 and 18,328.59

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Solution

The fourth proportional to 55,777.18, 83,648.04 and 18,328.59 is: 27,487.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,777.18 : 83,648.04 = 18,328.59 : x
  2. Step 2: Convert to fraction form
    55,777.18/83,648.04 = 18,328.59/x
  3. Step 3: Cross multiply
    55,777.18x = 83,648.04 × 18,328.59
  4. Step 4: Simplify right side
    55,777.18x = 1,533,150,629.46
  5. Step 5: Solve for x
    x = 1,533,150,629.46/55,777.18
  6. Step 6: Final answer
    x = 27,487.06

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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.