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Finding the Fourth Proportional to 70,093.67, 96,727.40 and 64,451.21

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Solution

The fourth proportional to 70,093.67, 96,727.40 and 64,451.21 is: 88,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,093.67 : 96,727.40 = 64,451.21 : x
  2. Step 2: Convert to fraction form
    70,093.67/96,727.40 = 64,451.21/x
  3. Step 3: Cross multiply
    70,093.67x = 96,727.40 × 64,451.21
  4. Step 4: Simplify right side
    70,093.67x = 6,234,197,405.95
  5. Step 5: Solve for x
    x = 6,234,197,405.95/70,093.67
  6. Step 6: Final answer
    x = 88,940.95

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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.