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Finding the Fourth Proportional to 48,408.48, 72,581.64 and 18,794.76

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Solution

The fourth proportional to 48,408.48, 72,581.64 and 18,794.76 is: 28,180.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,408.48 : 72,581.64 = 18,794.76 : x
  2. Step 2: Convert to fraction form
    48,408.48/72,581.64 = 18,794.76/x
  3. Step 3: Cross multiply
    48,408.48x = 72,581.64 × 18,794.76
  4. Step 4: Simplify right side
    48,408.48x = 1,364,154,504.21
  5. Step 5: Solve for x
    x = 1,364,154,504.21/48,408.48
  6. Step 6: Final answer
    x = 28,180.07

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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.