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Finding the Fourth Proportional to 9,843.19, 13,583.60 and 6,308.45

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Solution

The fourth proportional to 9,843.19, 13,583.60 and 6,308.45 is: 8,705.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843.19 : 13,583.60 = 6,308.45 : x
  2. Step 2: Convert to fraction form
    9,843.19/13,583.60 = 6,308.45/x
  3. Step 3: Cross multiply
    9,843.19x = 13,583.60 × 6,308.45
  4. Step 4: Simplify right side
    9,843.19x = 85,691,436.55
  5. Step 5: Solve for x
    x = 85,691,436.55/9,843.19
  6. Step 6: Final answer
    x = 8,705.66

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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.