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Finding the Fourth Proportional to 21,362.08, 32,047.92 and 7,323.04

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Solution

The fourth proportional to 21,362.08, 32,047.92 and 7,323.04 is: 10,986.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.08 : 32,047.92 = 7,323.04 : x
  2. Step 2: Convert to fraction form
    21,362.08/32,047.92 = 7,323.04/x
  3. Step 3: Cross multiply
    21,362.08x = 32,047.92 × 7,323.04
  4. Step 4: Simplify right side
    21,362.08x = 234,688,200.08
  5. Step 5: Solve for x
    x = 234,688,200.08/21,362.08
  6. Step 6: Final answer
    x = 10,986.21

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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.