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Finding the Fourth Proportional to 52,671.72, 78,995.81 and 15,223.44

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Solution

The fourth proportional to 52,671.72, 78,995.81 and 15,223.44 is: 22,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,671.72 : 78,995.81 = 15,223.44 : x
  2. Step 2: Convert to fraction form
    52,671.72/78,995.81 = 15,223.44/x
  3. Step 3: Cross multiply
    52,671.72x = 78,995.81 × 15,223.44
  4. Step 4: Simplify right side
    52,671.72x = 1,202,588,222.45
  5. Step 5: Solve for x
    x = 1,202,588,222.45/52,671.72
  6. Step 6: Final answer
    x = 22,831.76

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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.