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Finding the Fourth Proportional to 6,961.13, 9,606.74 and 4,130.18

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Solution

The fourth proportional to 6,961.13, 9,606.74 and 4,130.18 is: 5,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,961.13 : 9,606.74 = 4,130.18 : x
  2. Step 2: Convert to fraction form
    6,961.13/9,606.74 = 4,130.18/x
  3. Step 3: Cross multiply
    6,961.13x = 9,606.74 × 4,130.18
  4. Step 4: Simplify right side
    6,961.13x = 39,677,496.73
  5. Step 5: Solve for x
    x = 39,677,496.73/6,961.13
  6. Step 6: Final answer
    x = 5,699.87

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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.