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Finding the Fourth Proportional to 35,053.40, 52,580.10 and 21,229.40

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Solution

The fourth proportional to 35,053.40, 52,580.10 and 21,229.40 is: 31,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,053.40 : 52,580.10 = 21,229.40 : x
  2. Step 2: Convert to fraction form
    35,053.40/52,580.10 = 21,229.40/x
  3. Step 3: Cross multiply
    35,053.40x = 52,580.10 × 21,229.40
  4. Step 4: Simplify right side
    35,053.40x = 1,116,243,974.94
  5. Step 5: Solve for x
    x = 1,116,243,974.94/35,053.40
  6. Step 6: Final answer
    x = 31,844.10

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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.