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Finding the Fourth Proportional to 54,599.80, 81,899.65 and 15,156.90

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Solution

The fourth proportional to 54,599.80, 81,899.65 and 15,156.90 is: 22,735.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,599.80 : 81,899.65 = 15,156.90 : x
  2. Step 2: Convert to fraction form
    54,599.80/81,899.65 = 15,156.90/x
  3. Step 3: Cross multiply
    54,599.80x = 81,899.65 × 15,156.90
  4. Step 4: Simplify right side
    54,599.80x = 1,241,344,805.09
  5. Step 5: Solve for x
    x = 1,241,344,805.09/54,599.80
  6. Step 6: Final answer
    x = 22,735.34

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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.