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Finding the Fourth Proportional to 2,916.79, 4,369.34 and 1,354.66

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Solution

The fourth proportional to 2,916.79, 4,369.34 and 1,354.66 is: 2,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.79 : 4,369.34 = 1,354.66 : x
  2. Step 2: Convert to fraction form
    2,916.79/4,369.34 = 1,354.66/x
  3. Step 3: Cross multiply
    2,916.79x = 4,369.34 × 1,354.66
  4. Step 4: Simplify right side
    2,916.79x = 5,918,962.59
  5. Step 5: Solve for x
    x = 5,918,962.59/2,916.79
  6. Step 6: Final answer
    x = 2,029.27

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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.