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Finding the Fourth Proportional to 14,898.97, 20,528.13 and 11,120.63

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Solution

The fourth proportional to 14,898.97, 20,528.13 and 11,120.63 is: 15,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,898.97 : 20,528.13 = 11,120.63 : x
  2. Step 2: Convert to fraction form
    14,898.97/20,528.13 = 11,120.63/x
  3. Step 3: Cross multiply
    14,898.97x = 20,528.13 × 11,120.63
  4. Step 4: Simplify right side
    14,898.97x = 228,285,677.38
  5. Step 5: Solve for x
    x = 228,285,677.38/14,898.97
  6. Step 6: Final answer
    x = 15,322.24

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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.