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Finding the Fourth Proportional to 35,596.80, 49,125.90 and 20,491.32

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Solution

The fourth proportional to 35,596.80, 49,125.90 and 20,491.32 is: 28,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,596.80 : 49,125.90 = 20,491.32 : x
  2. Step 2: Convert to fraction form
    35,596.80/49,125.90 = 20,491.32/x
  3. Step 3: Cross multiply
    35,596.80x = 49,125.90 × 20,491.32
  4. Step 4: Simplify right side
    35,596.80x = 1,006,654,537.19
  5. Step 5: Solve for x
    x = 1,006,654,537.19/35,596.80
  6. Step 6: Final answer
    x = 28,279.35

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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.