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Finding the Fourth Proportional to 66,898.10, 100,276.90 and 22,509.44

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Solution

The fourth proportional to 66,898.10, 100,276.90 and 22,509.44 is: 33,740.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,898.10 : 100,276.90 = 22,509.44 : x
  2. Step 2: Convert to fraction form
    66,898.10/100,276.90 = 22,509.44/x
  3. Step 3: Cross multiply
    66,898.10x = 100,276.90 × 22,509.44
  4. Step 4: Simplify right side
    66,898.10x = 2,257,176,863.94
  5. Step 5: Solve for x
    x = 2,257,176,863.94/66,898.10
  6. Step 6: Final answer
    x = 33,740.52

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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.