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Finding the Fourth Proportional to 35,422, 48,882.08 and 21,091.66

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Solution

The fourth proportional to 35,422, 48,882.08 and 21,091.66 is: 29,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,422 : 48,882.08 = 21,091.66 : x
  2. Step 2: Convert to fraction form
    35,422/48,882.08 = 21,091.66/x
  3. Step 3: Cross multiply
    35,422x = 48,882.08 × 21,091.66
  4. Step 4: Simplify right side
    35,422x = 1,031,004,211.45
  5. Step 5: Solve for x
    x = 1,031,004,211.45/35,422
  6. Step 6: Final answer
    x = 29,106.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.