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Finding the Fourth Proportional to 38,458.40, 57,687.60 and 16,264.40

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Solution

The fourth proportional to 38,458.40, 57,687.60 and 16,264.40 is: 24,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,458.40 : 57,687.60 = 16,264.40 : x
  2. Step 2: Convert to fraction form
    38,458.40/57,687.60 = 16,264.40/x
  3. Step 3: Cross multiply
    38,458.40x = 57,687.60 × 16,264.40
  4. Step 4: Simplify right side
    38,458.40x = 938,254,201.44
  5. Step 5: Solve for x
    x = 938,254,201.44/38,458.40
  6. Step 6: Final answer
    x = 24,396.60

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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.