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Finding the Fourth Proportional to 14,953.90, 22,451.10 and 9,721.30

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Solution

The fourth proportional to 14,953.90, 22,451.10 and 9,721.30 is: 14,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,953.90 : 22,451.10 = 9,721.30 : x
  2. Step 2: Convert to fraction form
    14,953.90/22,451.10 = 9,721.30/x
  3. Step 3: Cross multiply
    14,953.90x = 22,451.10 × 9,721.30
  4. Step 4: Simplify right side
    14,953.90x = 218,253,878.43
  5. Step 5: Solve for x
    x = 218,253,878.43/14,953.90
  6. Step 6: Final answer
    x = 14,595.11

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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.