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Finding the Fourth Proportional to 4,787.76, 6,607.42 and 2,692.02

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Solution

The fourth proportional to 4,787.76, 6,607.42 and 2,692.02 is: 3,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.76 : 6,607.42 = 2,692.02 : x
  2. Step 2: Convert to fraction form
    4,787.76/6,607.42 = 2,692.02/x
  3. Step 3: Cross multiply
    4,787.76x = 6,607.42 × 2,692.02
  4. Step 4: Simplify right side
    4,787.76x = 17,787,306.79
  5. Step 5: Solve for x
    x = 17,787,306.79/4,787.76
  6. Step 6: Final answer
    x = 3,715.16

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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.