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Finding the Fourth Proportional to 13,953.66, 20,926.17 and 4,717.50

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Solution

The fourth proportional to 13,953.66, 20,926.17 and 4,717.50 is: 7,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.66 : 20,926.17 = 4,717.50 : x
  2. Step 2: Convert to fraction form
    13,953.66/20,926.17 = 4,717.50/x
  3. Step 3: Cross multiply
    13,953.66x = 20,926.17 × 4,717.50
  4. Step 4: Simplify right side
    13,953.66x = 98,719,206.98
  5. Step 5: Solve for x
    x = 98,719,206.98/13,953.66
  6. Step 6: Final answer
    x = 7,074.79

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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.