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Finding the Fourth Proportional to 51,608.40, 71,201.16 and 29,252.40

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Solution

The fourth proportional to 51,608.40, 71,201.16 and 29,252.40 is: 40,357.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,608.40 : 71,201.16 = 29,252.40 : x
  2. Step 2: Convert to fraction form
    51,608.40/71,201.16 = 29,252.40/x
  3. Step 3: Cross multiply
    51,608.40x = 71,201.16 × 29,252.40
  4. Step 4: Simplify right side
    51,608.40x = 2,082,804,812.78
  5. Step 5: Solve for x
    x = 2,082,804,812.78/51,608.40
  6. Step 6: Final answer
    x = 40,357.86

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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.