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Finding the Fourth Proportional to 11,305.55, 15,609.39 and 7,063.07

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Solution

The fourth proportional to 11,305.55, 15,609.39 and 7,063.07 is: 9,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.55 : 15,609.39 = 7,063.07 : x
  2. Step 2: Convert to fraction form
    11,305.55/15,609.39 = 7,063.07/x
  3. Step 3: Cross multiply
    11,305.55x = 15,609.39 × 7,063.07
  4. Step 4: Simplify right side
    11,305.55x = 110,250,178.91
  5. Step 5: Solve for x
    x = 110,250,178.91/11,305.55
  6. Step 6: Final answer
    x = 9,751.87

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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.