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Finding the Fourth Proportional to 21,718.00, 32,556.19 and 6,917.32

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Solution

The fourth proportional to 21,718.00, 32,556.19 and 6,917.32 is: 10,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,718.00 : 32,556.19 = 6,917.32 : x
  2. Step 2: Convert to fraction form
    21,718.00/32,556.19 = 6,917.32/x
  3. Step 3: Cross multiply
    21,718.00x = 32,556.19 × 6,917.32
  4. Step 4: Simplify right side
    21,718.00x = 225,201,549.62
  5. Step 5: Solve for x
    x = 225,201,549.62/21,718.00
  6. Step 6: Final answer
    x = 10,369.35

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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.