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Finding the Fourth Proportional to 23,720.43, 35,582.34 and 7,079.12

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Solution

The fourth proportional to 23,720.43, 35,582.34 and 7,079.12 is: 10,619.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,720.43 : 35,582.34 = 7,079.12 : x
  2. Step 2: Convert to fraction form
    23,720.43/35,582.34 = 7,079.12/x
  3. Step 3: Cross multiply
    23,720.43x = 35,582.34 × 7,079.12
  4. Step 4: Simplify right side
    23,720.43x = 251,891,476.83
  5. Step 5: Solve for x
    x = 251,891,476.83/23,720.43
  6. Step 6: Final answer
    x = 10,619.18

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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.