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Finding the Fourth Proportional to 70,410.75, 105,616.13 and 23,663.63

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Solution

The fourth proportional to 70,410.75, 105,616.13 and 23,663.63 is: 35,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,410.75 : 105,616.13 = 23,663.63 : x
  2. Step 2: Convert to fraction form
    70,410.75/105,616.13 = 23,663.63/x
  3. Step 3: Cross multiply
    70,410.75x = 105,616.13 × 23,663.63
  4. Step 4: Simplify right side
    70,410.75x = 2,499,260,375.95
  5. Step 5: Solve for x
    x = 2,499,260,375.95/70,410.75
  6. Step 6: Final answer
    x = 35,495.44

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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.