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Finding the Fourth Proportional to 21,801.57, 32,695.65 and 7,006.52

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Solution

The fourth proportional to 21,801.57, 32,695.65 and 7,006.52 is: 10,507.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801.57 : 32,695.65 = 7,006.52 : x
  2. Step 2: Convert to fraction form
    21,801.57/32,695.65 = 7,006.52/x
  3. Step 3: Cross multiply
    21,801.57x = 32,695.65 × 7,006.52
  4. Step 4: Simplify right side
    21,801.57x = 229,082,725.64
  5. Step 5: Solve for x
    x = 229,082,725.64/21,801.57
  6. Step 6: Final answer
    x = 10,507.63

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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.