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Finding the Fourth Proportional to 45,210.36, 67,819.32 and 15,616.20

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Solution

The fourth proportional to 45,210.36, 67,819.32 and 15,616.20 is: 23,425.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,210.36 : 67,819.32 = 15,616.20 : x
  2. Step 2: Convert to fraction form
    45,210.36/67,819.32 = 15,616.20/x
  3. Step 3: Cross multiply
    45,210.36x = 67,819.32 × 15,616.20
  4. Step 4: Simplify right side
    45,210.36x = 1,059,080,064.98
  5. Step 5: Solve for x
    x = 1,059,080,064.98/45,210.36
  6. Step 6: Final answer
    x = 23,425.61

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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.