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Finding the Fourth Proportional to 6,709.36, 9,259.38 and 3,877.24

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Solution

The fourth proportional to 6,709.36, 9,259.38 and 3,877.24 is: 5,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,709.36 : 9,259.38 = 3,877.24 : x
  2. Step 2: Convert to fraction form
    6,709.36/9,259.38 = 3,877.24/x
  3. Step 3: Cross multiply
    6,709.36x = 9,259.38 × 3,877.24
  4. Step 4: Simplify right side
    6,709.36x = 35,900,838.51
  5. Step 5: Solve for x
    x = 35,900,838.51/6,709.36
  6. Step 6: Final answer
    x = 5,350.86

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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.