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Finding the Fourth Proportional to 66,529.70, 99,794.55 and 63,905.30

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Solution

The fourth proportional to 66,529.70, 99,794.55 and 63,905.30 is: 95,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,529.70 : 99,794.55 = 63,905.30 : x
  2. Step 2: Convert to fraction form
    66,529.70/99,794.55 = 63,905.30/x
  3. Step 3: Cross multiply
    66,529.70x = 99,794.55 × 63,905.30
  4. Step 4: Simplify right side
    66,529.70x = 6,377,400,656.12
  5. Step 5: Solve for x
    x = 6,377,400,656.12/66,529.70
  6. Step 6: Final answer
    x = 95,857.95

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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.