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Finding the Fourth Proportional to 66,105.76, 99,195.02 and 28,666.12

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Solution

The fourth proportional to 66,105.76, 99,195.02 and 28,666.12 is: 43,014.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,105.76 : 99,195.02 = 28,666.12 : x
  2. Step 2: Convert to fraction form
    66,105.76/99,195.02 = 28,666.12/x
  3. Step 3: Cross multiply
    66,105.76x = 99,195.02 × 28,666.12
  4. Step 4: Simplify right side
    66,105.76x = 2,843,536,346.72
  5. Step 5: Solve for x
    x = 2,843,536,346.72/66,105.76
  6. Step 6: Final answer
    x = 43,014.96

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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.