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Finding the Fourth Proportional to 35,393.19, 48,843.90 and 19,478.85

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Solution

The fourth proportional to 35,393.19, 48,843.90 and 19,478.85 is: 26,881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,393.19 : 48,843.90 = 19,478.85 : x
  2. Step 2: Convert to fraction form
    35,393.19/48,843.90 = 19,478.85/x
  3. Step 3: Cross multiply
    35,393.19x = 48,843.90 × 19,478.85
  4. Step 4: Simplify right side
    35,393.19x = 951,423,001.52
  5. Step 5: Solve for x
    x = 951,423,001.52/35,393.19
  6. Step 6: Final answer
    x = 26,881.53

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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.