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Finding the Fourth Proportional to 14,521.50, 20,042.13 and 8,237.52

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Solution

The fourth proportional to 14,521.50, 20,042.13 and 8,237.52 is: 11,369.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.50 : 20,042.13 = 8,237.52 : x
  2. Step 2: Convert to fraction form
    14,521.50/20,042.13 = 8,237.52/x
  3. Step 3: Cross multiply
    14,521.50x = 20,042.13 × 8,237.52
  4. Step 4: Simplify right side
    14,521.50x = 165,097,446.72
  5. Step 5: Solve for x
    x = 165,097,446.72/14,521.50
  6. Step 6: Final answer
    x = 11,369.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.