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Finding the Fourth Proportional to 51,898.60, 71,607.78 and 29,549.80

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Solution

The fourth proportional to 51,898.60, 71,607.78 and 29,549.80 is: 40,771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,898.60 : 71,607.78 = 29,549.80 : x
  2. Step 2: Convert to fraction form
    51,898.60/71,607.78 = 29,549.80/x
  3. Step 3: Cross multiply
    51,898.60x = 71,607.78 × 29,549.80
  4. Step 4: Simplify right side
    51,898.60x = 2,115,995,577.44
  5. Step 5: Solve for x
    x = 2,115,995,577.44/51,898.60
  6. Step 6: Final answer
    x = 40,771.73

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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.