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Finding the Fourth Proportional to 14,097.61, 21,156 and 7,528.51

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Solution

The fourth proportional to 14,097.61, 21,156 and 7,528.51 is: 11,297.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,097.61 : 21,156 = 7,528.51 : x
  2. Step 2: Convert to fraction form
    14,097.61/21,156 = 7,528.51/x
  3. Step 3: Cross multiply
    14,097.61x = 21,156 × 7,528.51
  4. Step 4: Simplify right side
    14,097.61x = 159,273,157.56
  5. Step 5: Solve for x
    x = 159,273,157.56/14,097.61
  6. Step 6: Final answer
    x = 11,297.88

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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.