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Finding the Fourth Proportional to 3,669.94, 5,065.64 and 2,929

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Solution

The fourth proportional to 3,669.94, 5,065.64 and 2,929 is: 4,042.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.94 : 5,065.64 = 2,929 : x
  2. Step 2: Convert to fraction form
    3,669.94/5,065.64 = 2,929/x
  3. Step 3: Cross multiply
    3,669.94x = 5,065.64 × 2,929
  4. Step 4: Simplify right side
    3,669.94x = 14,837,259.56
  5. Step 5: Solve for x
    x = 14,837,259.56/3,669.94
  6. Step 6: Final answer
    x = 4,042.92

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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.