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Finding the Fourth Proportional to 8,008.32, 11,028.42 and 7,984.02

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Solution

The fourth proportional to 8,008.32, 11,028.42 and 7,984.02 is: 10,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.32 : 11,028.42 = 7,984.02 : x
  2. Step 2: Convert to fraction form
    8,008.32/11,028.42 = 7,984.02/x
  3. Step 3: Cross multiply
    8,008.32x = 11,028.42 × 7,984.02
  4. Step 4: Simplify right side
    8,008.32x = 88,051,125.85
  5. Step 5: Solve for x
    x = 88,051,125.85/8,008.32
  6. Step 6: Final answer
    x = 10,994.96

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Double scale
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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.