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Finding the Fourth Proportional to 38,525.60, 57,788.40 and 12,232.40

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Solution

The fourth proportional to 38,525.60, 57,788.40 and 12,232.40 is: 18,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,525.60 : 57,788.40 = 12,232.40 : x
  2. Step 2: Convert to fraction form
    38,525.60/57,788.40 = 12,232.40/x
  3. Step 3: Cross multiply
    38,525.60x = 57,788.40 × 12,232.40
  4. Step 4: Simplify right side
    38,525.60x = 706,890,824.16
  5. Step 5: Solve for x
    x = 706,890,824.16/38,525.60
  6. Step 6: Final answer
    x = 18,348.60

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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.