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Finding the Fourth Proportional to 51,616.44, 77,424.66 and 42,363

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Solution

The fourth proportional to 51,616.44, 77,424.66 and 42,363 is: 63,544.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,616.44 : 77,424.66 = 42,363 : x
  2. Step 2: Convert to fraction form
    51,616.44/77,424.66 = 42,363/x
  3. Step 3: Cross multiply
    51,616.44x = 77,424.66 × 42,363
  4. Step 4: Simplify right side
    51,616.44x = 3,279,940,871.58
  5. Step 5: Solve for x
    x = 3,279,940,871.58/51,616.44
  6. Step 6: Final answer
    x = 63,544.50

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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.