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Finding the Fourth Proportional to 21,551.80, 32,327.70 and 6,762.01

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Solution

The fourth proportional to 21,551.80, 32,327.70 and 6,762.01 is: 10,143.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551.80 : 32,327.70 = 6,762.01 : x
  2. Step 2: Convert to fraction form
    21,551.80/32,327.70 = 6,762.01/x
  3. Step 3: Cross multiply
    21,551.80x = 32,327.70 × 6,762.01
  4. Step 4: Simplify right side
    21,551.80x = 218,600,230.68
  5. Step 5: Solve for x
    x = 218,600,230.68/21,551.80
  6. Step 6: Final answer
    x = 10,143.02

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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.