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Finding the Fourth Proportional to 52,748.40, 72,793.65 and 28,874.67

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Solution

The fourth proportional to 52,748.40, 72,793.65 and 28,874.67 is: 39,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,748.40 : 72,793.65 = 28,874.67 : x
  2. Step 2: Convert to fraction form
    52,748.40/72,793.65 = 28,874.67/x
  3. Step 3: Cross multiply
    52,748.40x = 72,793.65 × 28,874.67
  4. Step 4: Simplify right side
    52,748.40x = 2,101,892,621.85
  5. Step 5: Solve for x
    x = 2,101,892,621.85/52,748.40
  6. Step 6: Final answer
    x = 39,847.51

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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.