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Finding the Fourth Proportional to 11,437.70, 17,148.45 and 5,200.70

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Solution

The fourth proportional to 11,437.70, 17,148.45 and 5,200.70 is: 7,797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,437.70 : 17,148.45 = 5,200.70 : x
  2. Step 2: Convert to fraction form
    11,437.70/17,148.45 = 5,200.70/x
  3. Step 3: Cross multiply
    11,437.70x = 17,148.45 × 5,200.70
  4. Step 4: Simplify right side
    11,437.70x = 89,183,943.92
  5. Step 5: Solve for x
    x = 89,183,943.92/11,437.70
  6. Step 6: Final answer
    x = 7,797.37

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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.