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Finding the Fourth Proportional to 4,954.55, 7,380.18 and 4,691.58

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Solution

The fourth proportional to 4,954.55, 7,380.18 and 4,691.58 is: 6,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,954.55 : 7,380.18 = 4,691.58 : x
  2. Step 2: Convert to fraction form
    4,954.55/7,380.18 = 4,691.58/x
  3. Step 3: Cross multiply
    4,954.55x = 7,380.18 × 4,691.58
  4. Step 4: Simplify right side
    4,954.55x = 34,624,704.88
  5. Step 5: Solve for x
    x = 34,624,704.88/4,954.55
  6. Step 6: Final answer
    x = 6,988.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.