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Finding the Fourth Proportional to 29,396.91, 40,568.47 and 15,968.15

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Solution

The fourth proportional to 29,396.91, 40,568.47 and 15,968.15 is: 22,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,396.91 : 40,568.47 = 15,968.15 : x
  2. Step 2: Convert to fraction form
    29,396.91/40,568.47 = 15,968.15/x
  3. Step 3: Cross multiply
    29,396.91x = 40,568.47 × 15,968.15
  4. Step 4: Simplify right side
    29,396.91x = 647,803,475.73
  5. Step 5: Solve for x
    x = 647,803,475.73/29,396.91
  6. Step 6: Final answer
    x = 22,036.45

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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.