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Finding the Fourth Proportional to 29,578.23, 40,817.41 and 16,831.13

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Solution

The fourth proportional to 29,578.23, 40,817.41 and 16,831.13 is: 23,226.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,578.23 : 40,817.41 = 16,831.13 : x
  2. Step 2: Convert to fraction form
    29,578.23/40,817.41 = 16,831.13/x
  3. Step 3: Cross multiply
    29,578.23x = 40,817.41 × 16,831.13
  4. Step 4: Simplify right side
    29,578.23x = 687,003,133.97
  5. Step 5: Solve for x
    x = 687,003,133.97/29,578.23
  6. Step 6: Final answer
    x = 23,226.65

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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.