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Finding the Fourth Proportional to 6,641.34, 9,968.16 and 3,356.74

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Solution

The fourth proportional to 6,641.34, 9,968.16 and 3,356.74 is: 5,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.34 : 9,968.16 = 3,356.74 : x
  2. Step 2: Convert to fraction form
    6,641.34/9,968.16 = 3,356.74/x
  3. Step 3: Cross multiply
    6,641.34x = 9,968.16 × 3,356.74
  4. Step 4: Simplify right side
    6,641.34x = 33,460,454.77
  5. Step 5: Solve for x
    x = 33,460,454.77/6,641.34
  6. Step 6: Final answer
    x = 5,038.21

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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.