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Finding the Fourth Proportional to 7,003.02, 9,664.13 and 3,859.22

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Solution

The fourth proportional to 7,003.02, 9,664.13 and 3,859.22 is: 5,325.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.02 : 9,664.13 = 3,859.22 : x
  2. Step 2: Convert to fraction form
    7,003.02/9,664.13 = 3,859.22/x
  3. Step 3: Cross multiply
    7,003.02x = 9,664.13 × 3,859.22
  4. Step 4: Simplify right side
    7,003.02x = 37,295,936.16
  5. Step 5: Solve for x
    x = 37,295,936.16/7,003.02
  6. Step 6: Final answer
    x = 5,325.69

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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.