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Finding the Fourth Proportional to 6,883.52, 10,330.08 and 5,156.64

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Solution

The fourth proportional to 6,883.52, 10,330.08 and 5,156.64 is: 7,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,883.52 : 10,330.08 = 5,156.64 : x
  2. Step 2: Convert to fraction form
    6,883.52/10,330.08 = 5,156.64/x
  3. Step 3: Cross multiply
    6,883.52x = 10,330.08 × 5,156.64
  4. Step 4: Simplify right side
    6,883.52x = 53,268,503.73
  5. Step 5: Solve for x
    x = 53,268,503.73/6,883.52
  6. Step 6: Final answer
    x = 7,738.56

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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.