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Finding the Fourth Proportional to 6,653.60, 9,972.30 and 2,951.90

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Solution

The fourth proportional to 6,653.60, 9,972.30 and 2,951.90 is: 4,424.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.60 : 9,972.30 = 2,951.90 : x
  2. Step 2: Convert to fraction form
    6,653.60/9,972.30 = 2,951.90/x
  3. Step 3: Cross multiply
    6,653.60x = 9,972.30 × 2,951.90
  4. Step 4: Simplify right side
    6,653.60x = 29,437,232.37
  5. Step 5: Solve for x
    x = 29,437,232.37/6,653.60
  6. Step 6: Final answer
    x = 4,424.26

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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.