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Finding the Fourth Proportional to 6,737.21, 9,300.67 and 5,221.42

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Solution

The fourth proportional to 6,737.21, 9,300.67 and 5,221.42 is: 7,208.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,737.21 : 9,300.67 = 5,221.42 : x
  2. Step 2: Convert to fraction form
    6,737.21/9,300.67 = 5,221.42/x
  3. Step 3: Cross multiply
    6,737.21x = 9,300.67 × 5,221.42
  4. Step 4: Simplify right side
    6,737.21x = 48,562,762.81
  5. Step 5: Solve for x
    x = 48,562,762.81/6,737.21
  6. Step 6: Final answer
    x = 7,208.14

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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.