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Finding the Fourth Proportional to 76,493.60, 114,740.40 and 23,919.20

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Solution

The fourth proportional to 76,493.60, 114,740.40 and 23,919.20 is: 35,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,493.60 : 114,740.40 = 23,919.20 : x
  2. Step 2: Convert to fraction form
    76,493.60/114,740.40 = 23,919.20/x
  3. Step 3: Cross multiply
    76,493.60x = 114,740.40 × 23,919.20
  4. Step 4: Simplify right side
    76,493.60x = 2,744,498,575.68
  5. Step 5: Solve for x
    x = 2,744,498,575.68/76,493.60
  6. Step 6: Final answer
    x = 35,878.80

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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.