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Finding the Fourth Proportional to 21,835.95, 32,757.99 and 7,043.32

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Solution

The fourth proportional to 21,835.95, 32,757.99 and 7,043.32 is: 10,566.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.95 : 32,757.99 = 7,043.32 : x
  2. Step 2: Convert to fraction form
    21,835.95/32,757.99 = 7,043.32/x
  3. Step 3: Cross multiply
    21,835.95x = 32,757.99 × 7,043.32
  4. Step 4: Simplify right side
    21,835.95x = 230,725,006.13
  5. Step 5: Solve for x
    x = 230,725,006.13/21,835.95
  6. Step 6: Final answer
    x = 10,566.29

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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.