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Finding the Fourth Proportional to 35,245.59, 48,643.02 and 21,098.43

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Solution

The fourth proportional to 35,245.59, 48,643.02 and 21,098.43 is: 29,118.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,245.59 : 48,643.02 = 21,098.43 : x
  2. Step 2: Convert to fraction form
    35,245.59/48,643.02 = 21,098.43/x
  3. Step 3: Cross multiply
    35,245.59x = 48,643.02 × 21,098.43
  4. Step 4: Simplify right side
    35,245.59x = 1,026,291,352.46
  5. Step 5: Solve for x
    x = 1,026,291,352.46/35,245.59
  6. Step 6: Final answer
    x = 29,118.29

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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.