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Finding the Fourth Proportional to 6,620.32, 9,968.95 and 4,783.96

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Solution

The fourth proportional to 6,620.32, 9,968.95 and 4,783.96 is: 7,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.32 : 9,968.95 = 4,783.96 : x
  2. Step 2: Convert to fraction form
    6,620.32/9,968.95 = 4,783.96/x
  3. Step 3: Cross multiply
    6,620.32x = 9,968.95 × 4,783.96
  4. Step 4: Simplify right side
    6,620.32x = 47,691,058.04
  5. Step 5: Solve for x
    x = 47,691,058.04/6,620.32
  6. Step 6: Final answer
    x = 7,203.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.