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Finding the Fourth Proportional to 21,649.52, 32,475.36 and 7,798.52

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Solution

The fourth proportional to 21,649.52, 32,475.36 and 7,798.52 is: 11,698.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,649.52 : 32,475.36 = 7,798.52 : x
  2. Step 2: Convert to fraction form
    21,649.52/32,475.36 = 7,798.52/x
  3. Step 3: Cross multiply
    21,649.52x = 32,475.36 × 7,798.52
  4. Step 4: Simplify right side
    21,649.52x = 253,259,744.47
  5. Step 5: Solve for x
    x = 253,259,744.47/21,649.52
  6. Step 6: Final answer
    x = 11,698.17

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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.