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Finding the Fourth Proportional to 43,193.60, 64,660.80 and 25,654.40

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Solution

The fourth proportional to 43,193.60, 64,660.80 and 25,654.40 is: 38,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,193.60 : 64,660.80 = 25,654.40 : x
  2. Step 2: Convert to fraction form
    43,193.60/64,660.80 = 25,654.40/x
  3. Step 3: Cross multiply
    43,193.60x = 64,660.80 × 25,654.40
  4. Step 4: Simplify right side
    43,193.60x = 1,658,834,027.52
  5. Step 5: Solve for x
    x = 1,658,834,027.52/43,193.60
  6. Step 6: Final answer
    x = 38,404.63

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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.