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Finding the Fourth Proportional to 4,338.75, 6,501.65 and 2,949.15

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Solution

The fourth proportional to 4,338.75, 6,501.65 and 2,949.15 is: 4,419.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,338.75 : 6,501.65 = 2,949.15 : x
  2. Step 2: Convert to fraction form
    4,338.75/6,501.65 = 2,949.15/x
  3. Step 3: Cross multiply
    4,338.75x = 6,501.65 × 2,949.15
  4. Step 4: Simplify right side
    4,338.75x = 19,174,326.35
  5. Step 5: Solve for x
    x = 19,174,326.35/4,338.75
  6. Step 6: Final answer
    x = 4,419.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.