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Finding the Fourth Proportional to 29,640.80, 44,461.20 and 26,271.20

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Solution

The fourth proportional to 29,640.80, 44,461.20 and 26,271.20 is: 39,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,640.80 : 44,461.20 = 26,271.20 : x
  2. Step 2: Convert to fraction form
    29,640.80/44,461.20 = 26,271.20/x
  3. Step 3: Cross multiply
    29,640.80x = 44,461.20 × 26,271.20
  4. Step 4: Simplify right side
    29,640.80x = 1,168,049,077.44
  5. Step 5: Solve for x
    x = 1,168,049,077.44/29,640.80
  6. Step 6: Final answer
    x = 39,406.80

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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.