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Finding the Fourth Proportional to 6,321, 9,473.81 and 4,472.64

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Solution

The fourth proportional to 6,321, 9,473.81 and 4,472.64 is: 6,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321 : 9,473.81 = 4,472.64 : x
  2. Step 2: Convert to fraction form
    6,321/9,473.81 = 4,472.64/x
  3. Step 3: Cross multiply
    6,321x = 9,473.81 × 4,472.64
  4. Step 4: Simplify right side
    6,321x = 42,372,941.56
  5. Step 5: Solve for x
    x = 42,372,941.56/6,321
  6. Step 6: Final answer
    x = 6,703.52

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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.