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Finding the Fourth Proportional to 6,947.35, 10,421.03 and 1,753.22

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Solution

The fourth proportional to 6,947.35, 10,421.03 and 1,753.22 is: 2,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.35 : 10,421.03 = 1,753.22 : x
  2. Step 2: Convert to fraction form
    6,947.35/10,421.03 = 1,753.22/x
  3. Step 3: Cross multiply
    6,947.35x = 10,421.03 × 1,753.22
  4. Step 4: Simplify right side
    6,947.35x = 18,270,388.65
  5. Step 5: Solve for x
    x = 18,270,388.65/6,947.35
  6. Step 6: Final answer
    x = 2,629.84

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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.