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Finding the Fourth Proportional to 7,297.55, 10,136.78 and 7,184.49

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Solution

The fourth proportional to 7,297.55, 10,136.78 and 7,184.49 is: 9,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,297.55 : 10,136.78 = 7,184.49 : x
  2. Step 2: Convert to fraction form
    7,297.55/10,136.78 = 7,184.49/x
  3. Step 3: Cross multiply
    7,297.55x = 10,136.78 × 7,184.49
  4. Step 4: Simplify right side
    7,297.55x = 72,827,594.54
  5. Step 5: Solve for x
    x = 72,827,594.54/7,297.55
  6. Step 6: Final answer
    x = 9,979.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.