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Finding the Fourth Proportional to 82,672.74, 124,017.28 and 26,498.70

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Solution

The fourth proportional to 82,672.74, 124,017.28 and 26,498.70 is: 39,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,672.74 : 124,017.28 = 26,498.70 : x
  2. Step 2: Convert to fraction form
    82,672.74/124,017.28 = 26,498.70/x
  3. Step 3: Cross multiply
    82,672.74x = 124,017.28 × 26,498.70
  4. Step 4: Simplify right side
    82,672.74x = 3,286,296,697.54
  5. Step 5: Solve for x
    x = 3,286,296,697.54/82,672.74
  6. Step 6: Final answer
    x = 39,750.67

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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.