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Finding the Fourth Proportional to 8,329.64, 11,471.42 and 7,334.55

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Solution

The fourth proportional to 8,329.64, 11,471.42 and 7,334.55 is: 10,101.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.64 : 11,471.42 = 7,334.55 : x
  2. Step 2: Convert to fraction form
    8,329.64/11,471.42 = 7,334.55/x
  3. Step 3: Cross multiply
    8,329.64x = 11,471.42 × 7,334.55
  4. Step 4: Simplify right side
    8,329.64x = 84,137,721.90
  5. Step 5: Solve for x
    x = 84,137,721.90/8,329.64
  6. Step 6: Final answer
    x = 10,101.01

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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.