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Finding the Fourth Proportional to 9,843.64, 13,580.22 and 6,308.92

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Solution

The fourth proportional to 9,843.64, 13,580.22 and 6,308.92 is: 8,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843.64 : 13,580.22 = 6,308.92 : x
  2. Step 2: Convert to fraction form
    9,843.64/13,580.22 = 6,308.92/x
  3. Step 3: Cross multiply
    9,843.64x = 13,580.22 × 6,308.92
  4. Step 4: Simplify right side
    9,843.64x = 85,676,521.56
  5. Step 5: Solve for x
    x = 85,676,521.56/9,843.64
  6. Step 6: Final answer
    x = 8,703.74

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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.