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Finding the Fourth Proportional to 13,305.84, 19,958.85 and 6,359.28

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Solution

The fourth proportional to 13,305.84, 19,958.85 and 6,359.28 is: 9,538.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.84 : 19,958.85 = 6,359.28 : x
  2. Step 2: Convert to fraction form
    13,305.84/19,958.85 = 6,359.28/x
  3. Step 3: Cross multiply
    13,305.84x = 19,958.85 × 6,359.28
  4. Step 4: Simplify right side
    13,305.84x = 126,923,915.63
  5. Step 5: Solve for x
    x = 126,923,915.63/13,305.84
  6. Step 6: Final answer
    x = 9,538.96

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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.