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Finding the Fourth Proportional to 55,333.80, 82,992.60 and 15,886.80

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Solution

The fourth proportional to 55,333.80, 82,992.60 and 15,886.80 is: 23,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,333.80 : 82,992.60 = 15,886.80 : x
  2. Step 2: Convert to fraction form
    55,333.80/82,992.60 = 15,886.80/x
  3. Step 3: Cross multiply
    55,333.80x = 82,992.60 × 15,886.80
  4. Step 4: Simplify right side
    55,333.80x = 1,318,486,837.68
  5. Step 5: Solve for x
    x = 1,318,486,837.68/55,333.80
  6. Step 6: Final answer
    x = 23,827.87

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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.