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Finding the Fourth Proportional to 51,418.80, 70,957.80 and 29,062.80

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Solution

The fourth proportional to 51,418.80, 70,957.80 and 29,062.80 is: 40,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,418.80 : 70,957.80 = 29,062.80 : x
  2. Step 2: Convert to fraction form
    51,418.80/70,957.80 = 29,062.80/x
  3. Step 3: Cross multiply
    51,418.80x = 70,957.80 × 29,062.80
  4. Step 4: Simplify right side
    51,418.80x = 2,062,232,349.84
  5. Step 5: Solve for x
    x = 2,062,232,349.84/51,418.80
  6. Step 6: Final answer
    x = 40,106.58

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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.