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Finding the Fourth Proportional to 4,687.56, 7,032.27 and 1,914.24

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Solution

The fourth proportional to 4,687.56, 7,032.27 and 1,914.24 is: 2,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.56 : 7,032.27 = 1,914.24 : x
  2. Step 2: Convert to fraction form
    4,687.56/7,032.27 = 1,914.24/x
  3. Step 3: Cross multiply
    4,687.56x = 7,032.27 × 1,914.24
  4. Step 4: Simplify right side
    4,687.56x = 13,461,452.52
  5. Step 5: Solve for x
    x = 13,461,452.52/4,687.56
  6. Step 6: Final answer
    x = 2,871.74

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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.