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Finding the Fourth Proportional to 57,915.60, 79,932.60 and 41,994.24

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Solution

The fourth proportional to 57,915.60, 79,932.60 and 41,994.24 is: 57,958.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,915.60 : 79,932.60 = 41,994.24 : x
  2. Step 2: Convert to fraction form
    57,915.60/79,932.60 = 41,994.24/x
  3. Step 3: Cross multiply
    57,915.60x = 79,932.60 × 41,994.24
  4. Step 4: Simplify right side
    57,915.60x = 3,356,708,788.22
  5. Step 5: Solve for x
    x = 3,356,708,788.22/57,915.60
  6. Step 6: Final answer
    x = 57,958.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.