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Finding the Fourth Proportional to 53,866.74, 80,837.02 and 18,806.38

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Solution

The fourth proportional to 53,866.74, 80,837.02 and 18,806.38 is: 28,222.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,866.74 : 80,837.02 = 18,806.38 : x
  2. Step 2: Convert to fraction form
    53,866.74/80,837.02 = 18,806.38/x
  3. Step 3: Cross multiply
    53,866.74x = 80,837.02 × 18,806.38
  4. Step 4: Simplify right side
    53,866.74x = 1,520,251,716.19
  5. Step 5: Solve for x
    x = 1,520,251,716.19/53,866.74
  6. Step 6: Final answer
    x = 28,222.46

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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.