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Finding the Fourth Proportional to 18,268.98, 27,403.50 and 4,417.98

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Solution

The fourth proportional to 18,268.98, 27,403.50 and 4,417.98 is: 6,626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.98 : 27,403.50 = 4,417.98 : x
  2. Step 2: Convert to fraction form
    18,268.98/27,403.50 = 4,417.98/x
  3. Step 3: Cross multiply
    18,268.98x = 27,403.50 × 4,417.98
  4. Step 4: Simplify right side
    18,268.98x = 121,068,114.93
  5. Step 5: Solve for x
    x = 121,068,114.93/18,268.98
  6. Step 6: Final answer
    x = 6,626.98

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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.