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Finding the Fourth Proportional to 55,894.59, 83,850.18 and 18,458.61

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Solution

The fourth proportional to 55,894.59, 83,850.18 and 18,458.61 is: 27,690.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,894.59 : 83,850.18 = 18,458.61 : x
  2. Step 2: Convert to fraction form
    55,894.59/83,850.18 = 18,458.61/x
  3. Step 3: Cross multiply
    55,894.59x = 83,850.18 × 18,458.61
  4. Step 4: Simplify right side
    55,894.59x = 1,547,757,771.05
  5. Step 5: Solve for x
    x = 1,547,757,771.05/55,894.59
  6. Step 6: Final answer
    x = 27,690.65

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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.