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Finding the Fourth Proportional to 56,188.66, 84,254.77 and 18,735.47

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Solution

The fourth proportional to 56,188.66, 84,254.77 and 18,735.47 is: 28,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,188.66 : 84,254.77 = 18,735.47 : x
  2. Step 2: Convert to fraction form
    56,188.66/84,254.77 = 18,735.47/x
  3. Step 3: Cross multiply
    56,188.66x = 84,254.77 × 18,735.47
  4. Step 4: Simplify right side
    56,188.66x = 1,578,552,622.01
  5. Step 5: Solve for x
    x = 1,578,552,622.01/56,188.66
  6. Step 6: Final answer
    x = 28,093.80

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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.