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Finding the Fourth Proportional to 66,813.96, 100,225.92 and 22,440.96

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Solution

The fourth proportional to 66,813.96, 100,225.92 and 22,440.96 is: 33,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,813.96 : 100,225.92 = 22,440.96 : x
  2. Step 2: Convert to fraction form
    66,813.96/100,225.92 = 22,440.96/x
  3. Step 3: Cross multiply
    66,813.96x = 100,225.92 × 22,440.96
  4. Step 4: Simplify right side
    66,813.96x = 2,249,165,861.68
  5. Step 5: Solve for x
    x = 2,249,165,861.68/66,813.96
  6. Step 6: Final answer
    x = 33,663.11

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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.