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Finding the Fourth Proportional to 66,239.22, 91,410.72 and 36,024.81

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Solution

The fourth proportional to 66,239.22, 91,410.72 and 36,024.81 is: 49,714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,239.22 : 91,410.72 = 36,024.81 : x
  2. Step 2: Convert to fraction form
    66,239.22/91,410.72 = 36,024.81/x
  3. Step 3: Cross multiply
    66,239.22x = 91,410.72 × 36,024.81
  4. Step 4: Simplify right side
    66,239.22x = 3,293,053,819.96
  5. Step 5: Solve for x
    x = 3,293,053,819.96/66,239.22
  6. Step 6: Final answer
    x = 49,714.56

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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.