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Finding the Fourth Proportional to 34,885.44, 48,138.78 and 19,363.47

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Solution

The fourth proportional to 34,885.44, 48,138.78 and 19,363.47 is: 26,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,885.44 : 48,138.78 = 19,363.47 : x
  2. Step 2: Convert to fraction form
    34,885.44/48,138.78 = 19,363.47/x
  3. Step 3: Cross multiply
    34,885.44x = 48,138.78 × 19,363.47
  4. Step 4: Simplify right side
    34,885.44x = 932,133,822.37
  5. Step 5: Solve for x
    x = 932,133,822.37/34,885.44
  6. Step 6: Final answer
    x = 26,719.85

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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.