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Finding the Fourth Proportional to 56,005.03, 83,995.05 and 33,787.90

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Solution

The fourth proportional to 56,005.03, 83,995.05 and 33,787.90 is: 50,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,005.03 : 83,995.05 = 33,787.90 : x
  2. Step 2: Convert to fraction form
    56,005.03/83,995.05 = 33,787.90/x
  3. Step 3: Cross multiply
    56,005.03x = 83,995.05 × 33,787.90
  4. Step 4: Simplify right side
    56,005.03x = 2,838,015,929.92
  5. Step 5: Solve for x
    x = 2,838,015,929.92/56,005.03
  6. Step 6: Final answer
    x = 50,674.31

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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.