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Finding the Fourth Proportional to 55,928.73, 83,891.04 and 13,808.48

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Solution

The fourth proportional to 55,928.73, 83,891.04 and 13,808.48 is: 20,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,928.73 : 83,891.04 = 13,808.48 : x
  2. Step 2: Convert to fraction form
    55,928.73/83,891.04 = 13,808.48/x
  3. Step 3: Cross multiply
    55,928.73x = 83,891.04 × 13,808.48
  4. Step 4: Simplify right side
    55,928.73x = 1,158,407,354.45
  5. Step 5: Solve for x
    x = 1,158,407,354.45/55,928.73
  6. Step 6: Final answer
    x = 20,712.21

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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.