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Finding the Fourth Proportional to 17,491.87, 26,243.48 and 10,470.79

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Solution

The fourth proportional to 17,491.87, 26,243.48 and 10,470.79 is: 15,709.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,491.87 : 26,243.48 = 10,470.79 : x
  2. Step 2: Convert to fraction form
    17,491.87/26,243.48 = 10,470.79/x
  3. Step 3: Cross multiply
    17,491.87x = 26,243.48 × 10,470.79
  4. Step 4: Simplify right side
    17,491.87x = 274,789,967.95
  5. Step 5: Solve for x
    x = 274,789,967.95/17,491.87
  6. Step 6: Final answer
    x = 15,709.58

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1.5x scale

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.