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Finding the Fourth Proportional to 66,451.91, 99,645.05 and 24,300.22

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Solution

The fourth proportional to 66,451.91, 99,645.05 and 24,300.22 is: 36,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,451.91 : 99,645.05 = 24,300.22 : x
  2. Step 2: Convert to fraction form
    66,451.91/99,645.05 = 24,300.22/x
  3. Step 3: Cross multiply
    66,451.91x = 99,645.05 × 24,300.22
  4. Step 4: Simplify right side
    66,451.91x = 2,421,396,017.18
  5. Step 5: Solve for x
    x = 2,421,396,017.18/66,451.91
  6. Step 6: Final answer
    x = 36,438.32

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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.