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Finding the Fourth Proportional to 75,645.60, 113,486.80 and 23,056.08

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Solution

The fourth proportional to 75,645.60, 113,486.80 and 23,056.08 is: 34,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,645.60 : 113,486.80 = 23,056.08 : x
  2. Step 2: Convert to fraction form
    75,645.60/113,486.80 = 23,056.08/x
  3. Step 3: Cross multiply
    75,645.60x = 113,486.80 × 23,056.08
  4. Step 4: Simplify right side
    75,645.60x = 2,616,560,739.74
  5. Step 5: Solve for x
    x = 2,616,560,739.74/75,645.60
  6. Step 6: Final answer
    x = 34,589.73

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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.