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Finding the Fourth Proportional to 56,018.44, 77,309.19 and 30,867.94

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Solution

The fourth proportional to 56,018.44, 77,309.19 and 30,867.94 is: 42,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,018.44 : 77,309.19 = 30,867.94 : x
  2. Step 2: Convert to fraction form
    56,018.44/77,309.19 = 30,867.94/x
  3. Step 3: Cross multiply
    56,018.44x = 77,309.19 × 30,867.94
  4. Step 4: Simplify right side
    56,018.44x = 2,386,375,245.10
  5. Step 5: Solve for x
    x = 2,386,375,245.10/56,018.44
  6. Step 6: Final answer
    x = 42,599.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.