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Finding the Fourth Proportional to 2,975.76, 4,462.72 and 2,057.22

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Solution

The fourth proportional to 2,975.76, 4,462.72 and 2,057.22 is: 3,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.76 : 4,462.72 = 2,057.22 : x
  2. Step 2: Convert to fraction form
    2,975.76/4,462.72 = 2,057.22/x
  3. Step 3: Cross multiply
    2,975.76x = 4,462.72 × 2,057.22
  4. Step 4: Simplify right side
    2,975.76x = 9,180,774.96
  5. Step 5: Solve for x
    x = 9,180,774.96/2,975.76
  6. Step 6: Final answer
    x = 3,085.19

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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.