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Finding the Fourth Proportional to 4,927.22, 7,390.90 and 1,417.54

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Solution

The fourth proportional to 4,927.22, 7,390.90 and 1,417.54 is: 2,126.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,927.22 : 7,390.90 = 1,417.54 : x
  2. Step 2: Convert to fraction form
    4,927.22/7,390.90 = 1,417.54/x
  3. Step 3: Cross multiply
    4,927.22x = 7,390.90 × 1,417.54
  4. Step 4: Simplify right side
    4,927.22x = 10,476,896.39
  5. Step 5: Solve for x
    x = 10,476,896.39/4,927.22
  6. Step 6: Final answer
    x = 2,126.33

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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.