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Finding the Fourth Proportional to 2,426.93, 3,641.11 and 783.44

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Solution

The fourth proportional to 2,426.93, 3,641.11 and 783.44 is: 1,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.93 : 3,641.11 = 783.44 : x
  2. Step 2: Convert to fraction form
    2,426.93/3,641.11 = 783.44/x
  3. Step 3: Cross multiply
    2,426.93x = 3,641.11 × 783.44
  4. Step 4: Simplify right side
    2,426.93x = 2,852,598.36
  5. Step 5: Solve for x
    x = 2,852,598.36/2,426.93
  6. Step 6: Final answer
    x = 1,175.39

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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.