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Finding the Fourth Proportional to 3,166.62, 4,750.20 and 975.84

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Solution

The fourth proportional to 3,166.62, 4,750.20 and 975.84 is: 1,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.62 : 4,750.20 = 975.84 : x
  2. Step 2: Convert to fraction form
    3,166.62/4,750.20 = 975.84/x
  3. Step 3: Cross multiply
    3,166.62x = 4,750.20 × 975.84
  4. Step 4: Simplify right side
    3,166.62x = 4,635,435.17
  5. Step 5: Solve for x
    x = 4,635,435.17/3,166.62
  6. Step 6: Final answer
    x = 1,463.84

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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.