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Finding the Fourth Proportional to 24,777.60, 37,218.24 and 20,889.60

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Solution

The fourth proportional to 24,777.60, 37,218.24 and 20,889.60 is: 31,378.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,777.60 : 37,218.24 = 20,889.60 : x
  2. Step 2: Convert to fraction form
    24,777.60/37,218.24 = 20,889.60/x
  3. Step 3: Cross multiply
    24,777.60x = 37,218.24 × 20,889.60
  4. Step 4: Simplify right side
    24,777.60x = 777,474,146.30
  5. Step 5: Solve for x
    x = 777,474,146.30/24,777.60
  6. Step 6: Final answer
    x = 31,378.11

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1.5x scale

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.