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Finding the Fourth Proportional to 54,677.88, 82,019.10 and 28,365.72

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Solution

The fourth proportional to 54,677.88, 82,019.10 and 28,365.72 is: 42,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,677.88 : 82,019.10 = 28,365.72 : x
  2. Step 2: Convert to fraction form
    54,677.88/82,019.10 = 28,365.72/x
  3. Step 3: Cross multiply
    54,677.88x = 82,019.10 × 28,365.72
  4. Step 4: Simplify right side
    54,677.88x = 2,326,530,825.25
  5. Step 5: Solve for x
    x = 2,326,530,825.25/54,677.88
  6. Step 6: Final answer
    x = 42,549.76

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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.