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Finding the Fourth Proportional to 45,696.48, 68,568.48 and 20,754.24

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Solution

The fourth proportional to 45,696.48, 68,568.48 and 20,754.24 is: 31,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,696.48 : 68,568.48 = 20,754.24 : x
  2. Step 2: Convert to fraction form
    45,696.48/68,568.48 = 20,754.24/x
  3. Step 3: Cross multiply
    45,696.48x = 68,568.48 × 20,754.24
  4. Step 4: Simplify right side
    45,696.48x = 1,423,086,690.36
  5. Step 5: Solve for x
    x = 1,423,086,690.36/45,696.48
  6. Step 6: Final answer
    x = 31,142.15

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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.