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Finding the Fourth Proportional to 35,468, 48,924.12 and 21,118.22

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Solution

The fourth proportional to 35,468, 48,924.12 and 21,118.22 is: 29,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,468 : 48,924.12 = 21,118.22 : x
  2. Step 2: Convert to fraction form
    35,468/48,924.12 = 21,118.22/x
  3. Step 3: Cross multiply
    35,468x = 48,924.12 × 21,118.22
  4. Step 4: Simplify right side
    35,468x = 1,033,190,329.47
  5. Step 5: Solve for x
    x = 1,033,190,329.47/35,468
  6. Step 6: Final answer
    x = 29,130.21

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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.