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Finding the Fourth Proportional to 66,434.64, 99,599.64 and 33,137.56

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Solution

The fourth proportional to 66,434.64, 99,599.64 and 33,137.56 is: 49,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,434.64 : 99,599.64 = 33,137.56 : x
  2. Step 2: Convert to fraction form
    66,434.64/99,599.64 = 33,137.56/x
  3. Step 3: Cross multiply
    66,434.64x = 99,599.64 × 33,137.56
  4. Step 4: Simplify right side
    66,434.64x = 3,300,489,046.48
  5. Step 5: Solve for x
    x = 3,300,489,046.48/66,434.64
  6. Step 6: Final answer
    x = 49,680.24

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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.