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Finding the Fourth Proportional to 6,644.48, 9,966.74 and 3,133.35

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Solution

The fourth proportional to 6,644.48, 9,966.74 and 3,133.35 is: 4,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.48 : 9,966.74 = 3,133.35 : x
  2. Step 2: Convert to fraction form
    6,644.48/9,966.74 = 3,133.35/x
  3. Step 3: Cross multiply
    6,644.48x = 9,966.74 × 3,133.35
  4. Step 4: Simplify right side
    6,644.48x = 31,229,269.11
  5. Step 5: Solve for x
    x = 31,229,269.11/6,644.48
  6. Step 6: Final answer
    x = 4,700.04

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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.