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Finding the Fourth Proportional to 58,284.30, 87,405.03 and 20,834.27

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Solution

The fourth proportional to 58,284.30, 87,405.03 and 20,834.27 is: 31,243.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,284.30 : 87,405.03 = 20,834.27 : x
  2. Step 2: Convert to fraction form
    58,284.30/87,405.03 = 20,834.27/x
  3. Step 3: Cross multiply
    58,284.30x = 87,405.03 × 20,834.27
  4. Step 4: Simplify right side
    58,284.30x = 1,821,019,994.38
  5. Step 5: Solve for x
    x = 1,821,019,994.38/58,284.30
  6. Step 6: Final answer
    x = 31,243.75

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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.