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Finding the Fourth Proportional to 29,640.62, 40,918.92 and 22,911.04

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Solution

The fourth proportional to 29,640.62, 40,918.92 and 22,911.04 is: 31,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,640.62 : 40,918.92 = 22,911.04 : x
  2. Step 2: Convert to fraction form
    29,640.62/40,918.92 = 22,911.04/x
  3. Step 3: Cross multiply
    29,640.62x = 40,918.92 × 22,911.04
  4. Step 4: Simplify right side
    29,640.62x = 937,495,012.88
  5. Step 5: Solve for x
    x = 937,495,012.88/29,640.62
  6. Step 6: Final answer
    x = 31,628.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.