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Finding the Fourth Proportional to 10,615.03, 15,926.87 and 4,774.39

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Solution

The fourth proportional to 10,615.03, 15,926.87 and 4,774.39 is: 7,163.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615.03 : 15,926.87 = 4,774.39 : x
  2. Step 2: Convert to fraction form
    10,615.03/15,926.87 = 4,774.39/x
  3. Step 3: Cross multiply
    10,615.03x = 15,926.87 × 4,774.39
  4. Step 4: Simplify right side
    10,615.03x = 76,041,064.99
  5. Step 5: Solve for x
    x = 76,041,064.99/10,615.03
  6. Step 6: Final answer
    x = 7,163.53

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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.