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Finding the Fourth Proportional to 83,370.67, 115,040.80 and 47,558.54

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Solution

The fourth proportional to 83,370.67, 115,040.80 and 47,558.54 is: 65,624.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,370.67 : 115,040.80 = 47,558.54 : x
  2. Step 2: Convert to fraction form
    83,370.67/115,040.80 = 47,558.54/x
  3. Step 3: Cross multiply
    83,370.67x = 115,040.80 × 47,558.54
  4. Step 4: Simplify right side
    83,370.67x = 5,471,172,488.43
  5. Step 5: Solve for x
    x = 5,471,172,488.43/83,370.67
  6. Step 6: Final answer
    x = 65,624.67

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1.5x scale

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.