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Finding the Fourth Proportional to 11,609.64, 16,020.98 and 6,304.28

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Solution

The fourth proportional to 11,609.64, 16,020.98 and 6,304.28 is: 8,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,609.64 : 16,020.98 = 6,304.28 : x
  2. Step 2: Convert to fraction form
    11,609.64/16,020.98 = 6,304.28/x
  3. Step 3: Cross multiply
    11,609.64x = 16,020.98 × 6,304.28
  4. Step 4: Simplify right side
    11,609.64x = 101,000,743.79
  5. Step 5: Solve for x
    x = 101,000,743.79/11,609.64
  6. Step 6: Final answer
    x = 8,699.73

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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.