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Finding the Fourth Proportional to 35,609.88, 49,126.78 and 20,498.92

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Solution

The fourth proportional to 35,609.88, 49,126.78 and 20,498.92 is: 28,279.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,609.88 : 49,126.78 = 20,498.92 : x
  2. Step 2: Convert to fraction form
    35,609.88/49,126.78 = 20,498.92/x
  3. Step 3: Cross multiply
    35,609.88x = 49,126.78 × 20,498.92
  4. Step 4: Simplify right side
    35,609.88x = 1,007,045,933.08
  5. Step 5: Solve for x
    x = 1,007,045,933.08/35,609.88
  6. Step 6: Final answer
    x = 28,279.96

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1.5x scale

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.