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Finding the Fourth Proportional to 6,607.58, 9,114.99 and 3,954.20

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Solution

The fourth proportional to 6,607.58, 9,114.99 and 3,954.20 is: 5,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607.58 : 9,114.99 = 3,954.20 : x
  2. Step 2: Convert to fraction form
    6,607.58/9,114.99 = 3,954.20/x
  3. Step 3: Cross multiply
    6,607.58x = 9,114.99 × 3,954.20
  4. Step 4: Simplify right side
    6,607.58x = 36,042,493.46
  5. Step 5: Solve for x
    x = 36,042,493.46/6,607.58
  6. Step 6: Final answer
    x = 5,454.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.