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Finding the Fourth Proportional to 54,705.80, 82,058.72 and 17,268.79

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Solution

The fourth proportional to 54,705.80, 82,058.72 and 17,268.79 is: 25,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,705.80 : 82,058.72 = 17,268.79 : x
  2. Step 2: Convert to fraction form
    54,705.80/82,058.72 = 17,268.79/x
  3. Step 3: Cross multiply
    54,705.80x = 82,058.72 × 17,268.79
  4. Step 4: Simplify right side
    54,705.80x = 1,417,054,803.35
  5. Step 5: Solve for x
    x = 1,417,054,803.35/54,705.80
  6. Step 6: Final answer
    x = 25,903.19

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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.