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Finding the Fourth Proportional to 14,246.16, 19,659.72 and 7,958.58

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Solution

The fourth proportional to 14,246.16, 19,659.72 and 7,958.58 is: 10,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,246.16 : 19,659.72 = 7,958.58 : x
  2. Step 2: Convert to fraction form
    14,246.16/19,659.72 = 7,958.58/x
  3. Step 3: Cross multiply
    14,246.16x = 19,659.72 × 7,958.58
  4. Step 4: Simplify right side
    14,246.16x = 156,463,454.40
  5. Step 5: Solve for x
    x = 156,463,454.40/14,246.16
  6. Step 6: Final answer
    x = 10,982.85

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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.