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Finding the Fourth Proportional to 14,718.76, 22,076.20 and 4,722.64

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Solution

The fourth proportional to 14,718.76, 22,076.20 and 4,722.64 is: 7,083.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.76 : 22,076.20 = 4,722.64 : x
  2. Step 2: Convert to fraction form
    14,718.76/22,076.20 = 4,722.64/x
  3. Step 3: Cross multiply
    14,718.76x = 22,076.20 × 4,722.64
  4. Step 4: Simplify right side
    14,718.76x = 104,257,945.17
  5. Step 5: Solve for x
    x = 104,257,945.17/14,718.76
  6. Step 6: Final answer
    x = 7,083.34

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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.