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Finding the Fourth Proportional to 4,953.86, 7,431.98 and 1,491.11

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Solution

The fourth proportional to 4,953.86, 7,431.98 and 1,491.11 is: 2,237.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953.86 : 7,431.98 = 1,491.11 : x
  2. Step 2: Convert to fraction form
    4,953.86/7,431.98 = 1,491.11/x
  3. Step 3: Cross multiply
    4,953.86x = 7,431.98 × 1,491.11
  4. Step 4: Simplify right side
    4,953.86x = 11,081,899.70
  5. Step 5: Solve for x
    x = 11,081,899.70/4,953.86
  6. Step 6: Final answer
    x = 2,237.02

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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.