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Finding the Fourth Proportional to 10,093.55, 15,139.17 and 2,698.65

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Solution

The fourth proportional to 10,093.55, 15,139.17 and 2,698.65 is: 4,047.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,093.55 : 15,139.17 = 2,698.65 : x
  2. Step 2: Convert to fraction form
    10,093.55/15,139.17 = 2,698.65/x
  3. Step 3: Cross multiply
    10,093.55x = 15,139.17 × 2,698.65
  4. Step 4: Simplify right side
    10,093.55x = 40,855,321.12
  5. Step 5: Solve for x
    x = 40,855,321.12/10,093.55
  6. Step 6: Final answer
    x = 4,047.67

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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.