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Finding the Fourth Proportional to 58,525.81, 80,765.03 and 31,667.72

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Solution

The fourth proportional to 58,525.81, 80,765.03 and 31,667.72 is: 43,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,525.81 : 80,765.03 = 31,667.72 : x
  2. Step 2: Convert to fraction form
    58,525.81/80,765.03 = 31,667.72/x
  3. Step 3: Cross multiply
    58,525.81x = 80,765.03 × 31,667.72
  4. Step 4: Simplify right side
    58,525.81x = 2,557,644,031.18
  5. Step 5: Solve for x
    x = 2,557,644,031.18/58,525.81
  6. Step 6: Final answer
    x = 43,701.13

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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.