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Finding the Fourth Proportional to 54,548.80, 81,823.20 and 17,612.80

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Solution

The fourth proportional to 54,548.80, 81,823.20 and 17,612.80 is: 26,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,548.80 : 81,823.20 = 17,612.80 : x
  2. Step 2: Convert to fraction form
    54,548.80/81,823.20 = 17,612.80/x
  3. Step 3: Cross multiply
    54,548.80x = 81,823.20 × 17,612.80
  4. Step 4: Simplify right side
    54,548.80x = 1,441,135,656.96
  5. Step 5: Solve for x
    x = 1,441,135,656.96/54,548.80
  6. Step 6: Final answer
    x = 26,419.20

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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.