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Finding the Fourth Proportional to 60,842.88, 91,269.12 and 21,408.84

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Solution

The fourth proportional to 60,842.88, 91,269.12 and 21,408.84 is: 32,114.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,842.88 : 91,269.12 = 21,408.84 : x
  2. Step 2: Convert to fraction form
    60,842.88/91,269.12 = 21,408.84/x
  3. Step 3: Cross multiply
    60,842.88x = 91,269.12 × 21,408.84
  4. Step 4: Simplify right side
    60,842.88x = 1,953,965,987.02
  5. Step 5: Solve for x
    x = 1,953,965,987.02/60,842.88
  6. Step 6: Final answer
    x = 32,114.95

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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.