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Finding the Fourth Proportional to 21,763.88, 32,650.70 and 6,973.68

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Solution

The fourth proportional to 21,763.88, 32,650.70 and 6,973.68 is: 10,462.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,763.88 : 32,650.70 = 6,973.68 : x
  2. Step 2: Convert to fraction form
    21,763.88/32,650.70 = 6,973.68/x
  3. Step 3: Cross multiply
    21,763.88x = 32,650.70 × 6,973.68
  4. Step 4: Simplify right side
    21,763.88x = 227,695,533.58
  5. Step 5: Solve for x
    x = 227,695,533.58/21,763.88
  6. Step 6: Final answer
    x = 10,462.08

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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.