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Finding the Fourth Proportional to 35,982.30, 53,903.30 and 21,907.43

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Solution

The fourth proportional to 35,982.30, 53,903.30 and 21,907.43 is: 32,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,982.30 : 53,903.30 = 21,907.43 : x
  2. Step 2: Convert to fraction form
    35,982.30/53,903.30 = 21,907.43/x
  3. Step 3: Cross multiply
    35,982.30x = 53,903.30 × 21,907.43
  4. Step 4: Simplify right side
    35,982.30x = 1,180,882,392.47
  5. Step 5: Solve for x
    x = 1,180,882,392.47/35,982.30
  6. Step 6: Final answer
    x = 32,818.42

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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.