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Finding the Fourth Proportional to 7,344.99, 10,989.95 and 4,372.56

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Solution

The fourth proportional to 7,344.99, 10,989.95 and 4,372.56 is: 6,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.99 : 10,989.95 = 4,372.56 : x
  2. Step 2: Convert to fraction form
    7,344.99/10,989.95 = 4,372.56/x
  3. Step 3: Cross multiply
    7,344.99x = 10,989.95 × 4,372.56
  4. Step 4: Simplify right side
    7,344.99x = 48,054,193.91
  5. Step 5: Solve for x
    x = 48,054,193.91/7,344.99
  6. Step 6: Final answer
    x = 6,542.45

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1.5x scale

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.