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Finding the Fourth Proportional to 54,999.60, 82,499.40 and 28,698.19

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Solution

The fourth proportional to 54,999.60, 82,499.40 and 28,698.19 is: 43,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,999.60 : 82,499.40 = 28,698.19 : x
  2. Step 2: Convert to fraction form
    54,999.60/82,499.40 = 28,698.19/x
  3. Step 3: Cross multiply
    54,999.60x = 82,499.40 × 28,698.19
  4. Step 4: Simplify right side
    54,999.60x = 2,367,583,734.08
  5. Step 5: Solve for x
    x = 2,367,583,734.08/54,999.60
  6. Step 6: Final answer
    x = 43,047.29

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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.