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Finding the Fourth Proportional to 53,894.69, 80,842.17 and 18,834.35

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Solution

The fourth proportional to 53,894.69, 80,842.17 and 18,834.35 is: 28,251.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,894.69 : 80,842.17 = 18,834.35 : x
  2. Step 2: Convert to fraction form
    53,894.69/80,842.17 = 18,834.35/x
  3. Step 3: Cross multiply
    53,894.69x = 80,842.17 × 18,834.35
  4. Step 4: Simplify right side
    53,894.69x = 1,522,609,320.33
  5. Step 5: Solve for x
    x = 1,522,609,320.33/53,894.69
  6. Step 6: Final answer
    x = 28,251.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.