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Finding the Fourth Proportional to 45,657.65, 68,480.09 and 15,671.42

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Solution

The fourth proportional to 45,657.65, 68,480.09 and 15,671.42 is: 23,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,657.65 : 68,480.09 = 15,671.42 : x
  2. Step 2: Convert to fraction form
    45,657.65/68,480.09 = 15,671.42/x
  3. Step 3: Cross multiply
    45,657.65x = 68,480.09 × 15,671.42
  4. Step 4: Simplify right side
    45,657.65x = 1,073,179,831.27
  5. Step 5: Solve for x
    x = 1,073,179,831.27/45,657.65
  6. Step 6: Final answer
    x = 23,504.93

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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.