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Finding the Fourth Proportional to 21,867.04, 32,804.34 and 7,079.68

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Solution

The fourth proportional to 21,867.04, 32,804.34 and 7,079.68 is: 10,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867.04 : 32,804.34 = 7,079.68 : x
  2. Step 2: Convert to fraction form
    21,867.04/32,804.34 = 7,079.68/x
  3. Step 3: Cross multiply
    21,867.04x = 32,804.34 × 7,079.68
  4. Step 4: Simplify right side
    21,867.04x = 232,244,229.81
  5. Step 5: Solve for x
    x = 232,244,229.81/21,867.04
  6. Step 6: Final answer
    x = 10,620.74

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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.