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Finding the Fourth Proportional to 66,385.12, 99,500.64 and 26,893.12

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Solution

The fourth proportional to 66,385.12, 99,500.64 and 26,893.12 is: 40,308.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,385.12 : 99,500.64 = 26,893.12 : x
  2. Step 2: Convert to fraction form
    66,385.12/99,500.64 = 26,893.12/x
  3. Step 3: Cross multiply
    66,385.12x = 99,500.64 × 26,893.12
  4. Step 4: Simplify right side
    66,385.12x = 2,675,882,651.60
  5. Step 5: Solve for x
    x = 2,675,882,651.60/66,385.12
  6. Step 6: Final answer
    x = 40,308.47

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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.