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Finding the Fourth Proportional to 28,593.60, 42,894.54 and 8,873.75

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Solution

The fourth proportional to 28,593.60, 42,894.54 and 8,873.75 is: 13,311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.60 : 42,894.54 = 8,873.75 : x
  2. Step 2: Convert to fraction form
    28,593.60/42,894.54 = 8,873.75/x
  3. Step 3: Cross multiply
    28,593.60x = 42,894.54 × 8,873.75
  4. Step 4: Simplify right side
    28,593.60x = 380,635,209.85
  5. Step 5: Solve for x
    x = 380,635,209.85/28,593.60
  6. Step 6: Final answer
    x = 13,311.90

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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.