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Finding the Fourth Proportional to 34,993.91, 48,288.92 and 19,886.81

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Solution

The fourth proportional to 34,993.91, 48,288.92 and 19,886.81 is: 27,442.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,993.91 : 48,288.92 = 19,886.81 : x
  2. Step 2: Convert to fraction form
    34,993.91/48,288.92 = 19,886.81/x
  3. Step 3: Cross multiply
    34,993.91x = 48,288.92 × 19,886.81
  4. Step 4: Simplify right side
    34,993.91x = 960,312,236.27
  5. Step 5: Solve for x
    x = 960,312,236.27/34,993.91
  6. Step 6: Final answer
    x = 27,442.27

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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.