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Finding the Fourth Proportional to 34,859.61, 48,106.98 and 18,945.09

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Solution

The fourth proportional to 34,859.61, 48,106.98 and 18,945.09 is: 26,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,859.61 : 48,106.98 = 18,945.09 : x
  2. Step 2: Convert to fraction form
    34,859.61/48,106.98 = 18,945.09/x
  3. Step 3: Cross multiply
    34,859.61x = 48,106.98 × 18,945.09
  4. Step 4: Simplify right side
    34,859.61x = 911,391,065.73
  5. Step 5: Solve for x
    x = 911,391,065.73/34,859.61
  6. Step 6: Final answer
    x = 26,144.61

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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.