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Finding the Fourth Proportional to 56,538.77, 84,817.93 and 19,099.12

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Solution

The fourth proportional to 56,538.77, 84,817.93 and 19,099.12 is: 28,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,538.77 : 84,817.93 = 19,099.12 : x
  2. Step 2: Convert to fraction form
    56,538.77/84,817.93 = 19,099.12/x
  3. Step 3: Cross multiply
    56,538.77x = 84,817.93 × 19,099.12
  4. Step 4: Simplify right side
    56,538.77x = 1,619,947,823.22
  5. Step 5: Solve for x
    x = 1,619,947,823.22/56,538.77
  6. Step 6: Final answer
    x = 28,651.98

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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.