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Finding the Fourth Proportional to 58,628.41, 87,941.39 and 14,255.39

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Solution

The fourth proportional to 58,628.41, 87,941.39 and 14,255.39 is: 21,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,628.41 : 87,941.39 = 14,255.39 : x
  2. Step 2: Convert to fraction form
    58,628.41/87,941.39 = 14,255.39/x
  3. Step 3: Cross multiply
    58,628.41x = 87,941.39 × 14,255.39
  4. Step 4: Simplify right side
    58,628.41x = 1,253,638,811.59
  5. Step 5: Solve for x
    x = 1,253,638,811.59/58,628.41
  6. Step 6: Final answer
    x = 21,382.79

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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.