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Finding the Fourth Proportional to 35,254.80, 52,920.60 and 19,702.80

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Solution

The fourth proportional to 35,254.80, 52,920.60 and 19,702.80 is: 29,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,254.80 : 52,920.60 = 19,702.80 : x
  2. Step 2: Convert to fraction form
    35,254.80/52,920.60 = 19,702.80/x
  3. Step 3: Cross multiply
    35,254.80x = 52,920.60 × 19,702.80
  4. Step 4: Simplify right side
    35,254.80x = 1,042,683,997.68
  5. Step 5: Solve for x
    x = 1,042,683,997.68/35,254.80
  6. Step 6: Final answer
    x = 29,575.66

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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.