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Finding the Fourth Proportional to 21,745.16, 32,619.73 and 6,752.36

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Solution

The fourth proportional to 21,745.16, 32,619.73 and 6,752.36 is: 10,129.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,745.16 : 32,619.73 = 6,752.36 : x
  2. Step 2: Convert to fraction form
    21,745.16/32,619.73 = 6,752.36/x
  3. Step 3: Cross multiply
    21,745.16x = 32,619.73 × 6,752.36
  4. Step 4: Simplify right side
    21,745.16x = 220,260,126.30
  5. Step 5: Solve for x
    x = 220,260,126.30/21,745.16
  6. Step 6: Final answer
    x = 10,129.16

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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.