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Finding the Fourth Proportional to 6,959.88, 9,607.04 and 4,165.36

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Solution

The fourth proportional to 6,959.88, 9,607.04 and 4,165.36 is: 5,749.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,959.88 : 9,607.04 = 4,165.36 : x
  2. Step 2: Convert to fraction form
    6,959.88/9,607.04 = 4,165.36/x
  3. Step 3: Cross multiply
    6,959.88x = 9,607.04 × 4,165.36
  4. Step 4: Simplify right side
    6,959.88x = 40,016,780.13
  5. Step 5: Solve for x
    x = 40,016,780.13/6,959.88
  6. Step 6: Final answer
    x = 5,749.64

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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.