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Finding the Fourth Proportional to 67,586.42, 101,373.15 and 20,826.74

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Solution

The fourth proportional to 67,586.42, 101,373.15 and 20,826.74 is: 31,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,586.42 : 101,373.15 = 20,826.74 : x
  2. Step 2: Convert to fraction form
    67,586.42/101,373.15 = 20,826.74/x
  3. Step 3: Cross multiply
    67,586.42x = 101,373.15 × 20,826.74
  4. Step 4: Simplify right side
    67,586.42x = 2,111,272,238.03
  5. Step 5: Solve for x
    x = 2,111,272,238.03/67,586.42
  6. Step 6: Final answer
    x = 31,238.11

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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.