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Finding the Fourth Proportional to 37,989.60, 57,031.20 and 23,949.60

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Solution

The fourth proportional to 37,989.60, 57,031.20 and 23,949.60 is: 35,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,989.60 : 57,031.20 = 23,949.60 : x
  2. Step 2: Convert to fraction form
    37,989.60/57,031.20 = 23,949.60/x
  3. Step 3: Cross multiply
    37,989.60x = 57,031.20 × 23,949.60
  4. Step 4: Simplify right side
    37,989.60x = 1,365,874,427.52
  5. Step 5: Solve for x
    x = 1,365,874,427.52/37,989.60
  6. Step 6: Final answer
    x = 35,953.90

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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.