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Finding the Fourth Proportional to 6,216.53, 9,358.82 and 5,672.21

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Solution

The fourth proportional to 6,216.53, 9,358.82 and 5,672.21 is: 8,539.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.53 : 9,358.82 = 5,672.21 : x
  2. Step 2: Convert to fraction form
    6,216.53/9,358.82 = 5,672.21/x
  3. Step 3: Cross multiply
    6,216.53x = 9,358.82 × 5,672.21
  4. Step 4: Simplify right side
    6,216.53x = 53,085,138.51
  5. Step 5: Solve for x
    x = 53,085,138.51/6,216.53
  6. Step 6: Final answer
    x = 8,539.36

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.