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Finding the Fourth Proportional to 21,673.07, 32,519.00 and 7,643.12

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Solution

The fourth proportional to 21,673.07, 32,519.00 and 7,643.12 is: 11,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.07 : 32,519.00 = 7,643.12 : x
  2. Step 2: Convert to fraction form
    21,673.07/32,519.00 = 7,643.12/x
  3. Step 3: Cross multiply
    21,673.07x = 32,519.00 × 7,643.12
  4. Step 4: Simplify right side
    21,673.07x = 248,546,662.36
  5. Step 5: Solve for x
    x = 248,546,662.36/21,673.07
  6. Step 6: Final answer
    x = 11,468.00

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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.