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Finding the Fourth Proportional to 45,937.70, 68,906.55 and 19,645.10

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Solution

The fourth proportional to 45,937.70, 68,906.55 and 19,645.10 is: 29,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,937.70 : 68,906.55 = 19,645.10 : x
  2. Step 2: Convert to fraction form
    45,937.70/68,906.55 = 19,645.10/x
  3. Step 3: Cross multiply
    45,937.70x = 68,906.55 × 19,645.10
  4. Step 4: Simplify right side
    45,937.70x = 1,353,676,065.41
  5. Step 5: Solve for x
    x = 1,353,676,065.41/45,937.70
  6. Step 6: Final answer
    x = 29,467.65

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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.