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Finding the Fourth Proportional to 55,787.60, 83,616.60 and 22,491.20

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Solution

The fourth proportional to 55,787.60, 83,616.60 and 22,491.20 is: 33,710.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,787.60 : 83,616.60 = 22,491.20 : x
  2. Step 2: Convert to fraction form
    55,787.60/83,616.60 = 22,491.20/x
  3. Step 3: Cross multiply
    55,787.60x = 83,616.60 × 22,491.20
  4. Step 4: Simplify right side
    55,787.60x = 1,880,637,673.92
  5. Step 5: Solve for x
    x = 1,880,637,673.92/55,787.60
  6. Step 6: Final answer
    x = 33,710.68

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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.