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Finding the Fourth Proportional to 36,878.55, 55,321.02 and 15,819.57

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Solution

The fourth proportional to 36,878.55, 55,321.02 and 15,819.57 is: 23,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,878.55 : 55,321.02 = 15,819.57 : x
  2. Step 2: Convert to fraction form
    36,878.55/55,321.02 = 15,819.57/x
  3. Step 3: Cross multiply
    36,878.55x = 55,321.02 × 15,819.57
  4. Step 4: Simplify right side
    36,878.55x = 875,154,748.36
  5. Step 5: Solve for x
    x = 875,154,748.36/36,878.55
  6. Step 6: Final answer
    x = 23,730.73

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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.