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Finding the Fourth Proportional to 66,057.86, 99,102.99 and 30,956.60

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Solution

The fourth proportional to 66,057.86, 99,102.99 and 30,956.60 is: 46,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,057.86 : 99,102.99 = 30,956.60 : x
  2. Step 2: Convert to fraction form
    66,057.86/99,102.99 = 30,956.60/x
  3. Step 3: Cross multiply
    66,057.86x = 99,102.99 × 30,956.60
  4. Step 4: Simplify right side
    66,057.86x = 3,067,891,620.23
  5. Step 5: Solve for x
    x = 3,067,891,620.23/66,057.86
  6. Step 6: Final answer
    x = 46,442.49

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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.