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Finding the Fourth Proportional to 58,487.64, 87,738.75 and 19,034.16

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Solution

The fourth proportional to 58,487.64, 87,738.75 and 19,034.16 is: 28,553.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,487.64 : 87,738.75 = 19,034.16 : x
  2. Step 2: Convert to fraction form
    58,487.64/87,738.75 = 19,034.16/x
  3. Step 3: Cross multiply
    58,487.64x = 87,738.75 × 19,034.16
  4. Step 4: Simplify right side
    58,487.64x = 1,670,033,405.70
  5. Step 5: Solve for x
    x = 1,670,033,405.70/58,487.64
  6. Step 6: Final answer
    x = 28,553.61

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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.