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Finding the Fourth Proportional to 19,314, 28,963.44 and 8,225.76

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Solution

The fourth proportional to 19,314, 28,963.44 and 8,225.76 is: 12,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314 : 28,963.44 = 8,225.76 : x
  2. Step 2: Convert to fraction form
    19,314/28,963.44 = 8,225.76/x
  3. Step 3: Cross multiply
    19,314x = 28,963.44 × 8,225.76
  4. Step 4: Simplify right side
    19,314x = 238,246,306.21
  5. Step 5: Solve for x
    x = 238,246,306.21/19,314
  6. Step 6: Final answer
    x = 12,335.42

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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.