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Finding the Fourth Proportional to 9,883.62, 13,629.06 and 6,343.92

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Solution

The fourth proportional to 9,883.62, 13,629.06 and 6,343.92 is: 8,747.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.62 : 13,629.06 = 6,343.92 : x
  2. Step 2: Convert to fraction form
    9,883.62/13,629.06 = 6,343.92/x
  3. Step 3: Cross multiply
    9,883.62x = 13,629.06 × 6,343.92
  4. Step 4: Simplify right side
    9,883.62x = 86,461,666.32
  5. Step 5: Solve for x
    x = 86,461,666.32/9,883.62
  6. Step 6: Final answer
    x = 8,747.98

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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.