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Finding the Fourth Proportional to 2,369.48, 3,554.26 and 809.84

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Solution

The fourth proportional to 2,369.48, 3,554.26 and 809.84 is: 1,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,369.48 : 3,554.26 = 809.84 : x
  2. Step 2: Convert to fraction form
    2,369.48/3,554.26 = 809.84/x
  3. Step 3: Cross multiply
    2,369.48x = 3,554.26 × 809.84
  4. Step 4: Simplify right side
    2,369.48x = 2,878,362.12
  5. Step 5: Solve for x
    x = 2,878,362.12/2,369.48
  6. Step 6: Final answer
    x = 1,214.77

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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.