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Finding the Fourth Proportional to 58,487.21, 87,742.65 and 19,033.73

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Solution

The fourth proportional to 58,487.21, 87,742.65 and 19,033.73 is: 28,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,487.21 : 87,742.65 = 19,033.73 : x
  2. Step 2: Convert to fraction form
    58,487.21/87,742.65 = 19,033.73/x
  3. Step 3: Cross multiply
    58,487.21x = 87,742.65 × 19,033.73
  4. Step 4: Simplify right side
    58,487.21x = 1,670,069,470.87
  5. Step 5: Solve for x
    x = 1,670,069,470.87/58,487.21
  6. Step 6: Final answer
    x = 28,554.44

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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.