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Finding the Fourth Proportional to 50,391, 75,587.22 and 17,559

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Solution

The fourth proportional to 50,391, 75,587.22 and 17,559 is: 26,338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,391 : 75,587.22 = 17,559 : x
  2. Step 2: Convert to fraction form
    50,391/75,587.22 = 17,559/x
  3. Step 3: Cross multiply
    50,391x = 75,587.22 × 17,559
  4. Step 4: Simplify right side
    50,391x = 1,327,235,995.98
  5. Step 5: Solve for x
    x = 1,327,235,995.98/50,391
  6. Step 6: Final answer
    x = 26,338.75

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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.