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Finding the Fourth Proportional to 11,079.96, 16,580.92 and 6,921.92

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Solution

The fourth proportional to 11,079.96, 16,580.92 and 6,921.92 is: 10,358.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.96 : 16,580.92 = 6,921.92 : x
  2. Step 2: Convert to fraction form
    11,079.96/16,580.92 = 6,921.92/x
  3. Step 3: Cross multiply
    11,079.96x = 16,580.92 × 6,921.92
  4. Step 4: Simplify right side
    11,079.96x = 114,771,801.77
  5. Step 5: Solve for x
    x = 114,771,801.77/11,079.96
  6. Step 6: Final answer
    x = 10,358.50

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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.