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Finding the Fourth Proportional to 21,903.59, 32,860.26 and 6,320

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Solution

The fourth proportional to 21,903.59, 32,860.26 and 6,320 is: 9,481.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.59 : 32,860.26 = 6,320 : x
  2. Step 2: Convert to fraction form
    21,903.59/32,860.26 = 6,320/x
  3. Step 3: Cross multiply
    21,903.59x = 32,860.26 × 6,320
  4. Step 4: Simplify right side
    21,903.59x = 207,676,843.20
  5. Step 5: Solve for x
    x = 207,676,843.20/21,903.59
  6. Step 6: Final answer
    x = 9,481.41

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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.