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Finding the Fourth Proportional to 34,859.72, 48,106.56 and 18,944.24

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Solution

The fourth proportional to 34,859.72, 48,106.56 and 18,944.24 is: 26,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,859.72 : 48,106.56 = 18,944.24 : x
  2. Step 2: Convert to fraction form
    34,859.72/48,106.56 = 18,944.24/x
  3. Step 3: Cross multiply
    34,859.72x = 48,106.56 × 18,944.24
  4. Step 4: Simplify right side
    34,859.72x = 911,342,218.21
  5. Step 5: Solve for x
    x = 911,342,218.21/34,859.72
  6. Step 6: Final answer
    x = 26,143.13

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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.