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Finding the Fourth Proportional to 6,469.20, 8,931.54 and 5,050.38

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Solution

The fourth proportional to 6,469.20, 8,931.54 and 5,050.38 is: 6,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.20 : 8,931.54 = 5,050.38 : x
  2. Step 2: Convert to fraction form
    6,469.20/8,931.54 = 5,050.38/x
  3. Step 3: Cross multiply
    6,469.20x = 8,931.54 × 5,050.38
  4. Step 4: Simplify right side
    6,469.20x = 45,107,670.99
  5. Step 5: Solve for x
    x = 45,107,670.99/6,469.20
  6. Step 6: Final answer
    x = 6,972.68

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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.