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Finding the Fourth Proportional to 58,326.56, 87,491.76 and 18,884

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Solution

The fourth proportional to 58,326.56, 87,491.76 and 18,884 is: 28,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,326.56 : 87,491.76 = 18,884 : x
  2. Step 2: Convert to fraction form
    58,326.56/87,491.76 = 18,884/x
  3. Step 3: Cross multiply
    58,326.56x = 87,491.76 × 18,884
  4. Step 4: Simplify right side
    58,326.56x = 1,652,194,395.84
  5. Step 5: Solve for x
    x = 1,652,194,395.84/58,326.56
  6. Step 6: Final answer
    x = 28,326.62

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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.