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Finding the Fourth Proportional to 6,972.52, 9,621.74 and 3,785.74

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Solution

The fourth proportional to 6,972.52, 9,621.74 and 3,785.74 is: 5,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.52 : 9,621.74 = 3,785.74 : x
  2. Step 2: Convert to fraction form
    6,972.52/9,621.74 = 3,785.74/x
  3. Step 3: Cross multiply
    6,972.52x = 9,621.74 × 3,785.74
  4. Step 4: Simplify right side
    6,972.52x = 36,425,405.99
  5. Step 5: Solve for x
    x = 36,425,405.99/6,972.52
  6. Step 6: Final answer
    x = 5,224.14

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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.