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Finding the Fourth Proportional to 58,487.09, 87,742.47 and 19,033.61

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Solution

The fourth proportional to 58,487.09, 87,742.47 and 19,033.61 is: 28,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,487.09 : 87,742.47 = 19,033.61 : x
  2. Step 2: Convert to fraction form
    58,487.09/87,742.47 = 19,033.61/x
  3. Step 3: Cross multiply
    58,487.09x = 87,742.47 × 19,033.61
  4. Step 4: Simplify right side
    58,487.09x = 1,670,055,515.70
  5. Step 5: Solve for x
    x = 1,670,055,515.70/58,487.09
  6. Step 6: Final answer
    x = 28,554.26

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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.