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Finding the Fourth Proportional to 43,190, 59,587.68 and 35,218.40

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Solution

The fourth proportional to 43,190, 59,587.68 and 35,218.40 is: 48,589.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,190 : 59,587.68 = 35,218.40 : x
  2. Step 2: Convert to fraction form
    43,190/59,587.68 = 35,218.40/x
  3. Step 3: Cross multiply
    43,190x = 59,587.68 × 35,218.40
  4. Step 4: Simplify right side
    43,190x = 2,098,582,749.31
  5. Step 5: Solve for x
    x = 2,098,582,749.31/43,190
  6. Step 6: Final answer
    x = 48,589.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.