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Finding the Fourth Proportional to 6,745.83, 9,308.79 and 3,913.29

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Solution

The fourth proportional to 6,745.83, 9,308.79 and 3,913.29 is: 5,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,745.83 : 9,308.79 = 3,913.29 : x
  2. Step 2: Convert to fraction form
    6,745.83/9,308.79 = 3,913.29/x
  3. Step 3: Cross multiply
    6,745.83x = 9,308.79 × 3,913.29
  4. Step 4: Simplify right side
    6,745.83x = 36,427,994.82
  5. Step 5: Solve for x
    x = 36,427,994.82/6,745.83
  6. Step 6: Final answer
    x = 5,400.08

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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.