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Finding the Fourth Proportional to 7,170.02, 9,893.62 and 3,983.08

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Solution

The fourth proportional to 7,170.02, 9,893.62 and 3,983.08 is: 5,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.02 : 9,893.62 = 3,983.08 : x
  2. Step 2: Convert to fraction form
    7,170.02/9,893.62 = 3,983.08/x
  3. Step 3: Cross multiply
    7,170.02x = 9,893.62 × 3,983.08
  4. Step 4: Simplify right side
    7,170.02x = 39,407,045.26
  5. Step 5: Solve for x
    x = 39,407,045.26/7,170.02
  6. Step 6: Final answer
    x = 5,496.08

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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.