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Finding the Fourth Proportional to 12,664.20, 17,473.89 and 7,356.27

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Solution

The fourth proportional to 12,664.20, 17,473.89 and 7,356.27 is: 10,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.20 : 17,473.89 = 7,356.27 : x
  2. Step 2: Convert to fraction form
    12,664.20/17,473.89 = 7,356.27/x
  3. Step 3: Cross multiply
    12,664.20x = 17,473.89 × 7,356.27
  4. Step 4: Simplify right side
    12,664.20x = 128,542,652.79
  5. Step 5: Solve for x
    x = 128,542,652.79/12,664.20
  6. Step 6: Final answer
    x = 10,150.08

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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.