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Finding the Fourth Proportional to 58,758.56, 88,137.48 and 21,309.92

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Solution

The fourth proportional to 58,758.56, 88,137.48 and 21,309.92 is: 31,964.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,758.56 : 88,137.48 = 21,309.92 : x
  2. Step 2: Convert to fraction form
    58,758.56/88,137.48 = 21,309.92/x
  3. Step 3: Cross multiply
    58,758.56x = 88,137.48 × 21,309.92
  4. Step 4: Simplify right side
    58,758.56x = 1,878,202,647.80
  5. Step 5: Solve for x
    x = 1,878,202,647.80/58,758.56
  6. Step 6: Final answer
    x = 31,964.75

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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.