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Finding the Fourth Proportional to 1,616.52, 2,424.15 and 692.52

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Solution

The fourth proportional to 1,616.52, 2,424.15 and 692.52 is: 1,038.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616.52 : 2,424.15 = 692.52 : x
  2. Step 2: Convert to fraction form
    1,616.52/2,424.15 = 692.52/x
  3. Step 3: Cross multiply
    1,616.52x = 2,424.15 × 692.52
  4. Step 4: Simplify right side
    1,616.52x = 1,678,772.36
  5. Step 5: Solve for x
    x = 1,678,772.36/1,616.52
  6. Step 6: Final answer
    x = 1,038.51

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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.