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Finding the Fourth Proportional to 35,129.38, 48,478.93 and 19,213.49

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Solution

The fourth proportional to 35,129.38, 48,478.93 and 19,213.49 is: 26,514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,129.38 : 48,478.93 = 19,213.49 : x
  2. Step 2: Convert to fraction form
    35,129.38/48,478.93 = 19,213.49/x
  3. Step 3: Cross multiply
    35,129.38x = 48,478.93 × 19,213.49
  4. Step 4: Simplify right side
    35,129.38x = 931,449,436.77
  5. Step 5: Solve for x
    x = 931,449,436.77/35,129.38
  6. Step 6: Final answer
    x = 26,514.83

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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.