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Finding the Fourth Proportional to 45,125.32, 67,694.48 and 13,963

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Solution

The fourth proportional to 45,125.32, 67,694.48 and 13,963 is: 20,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,125.32 : 67,694.48 = 13,963 : x
  2. Step 2: Convert to fraction form
    45,125.32/67,694.48 = 13,963/x
  3. Step 3: Cross multiply
    45,125.32x = 67,694.48 × 13,963
  4. Step 4: Simplify right side
    45,125.32x = 945,218,024.24
  5. Step 5: Solve for x
    x = 945,218,024.24/45,125.32
  6. Step 6: Final answer
    x = 20,946.51

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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.