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Finding the Fourth Proportional to 65,063, 89,787.06 and 35,255

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Solution

The fourth proportional to 65,063, 89,787.06 and 35,255 is: 48,651.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,063 : 89,787.06 = 35,255 : x
  2. Step 2: Convert to fraction form
    65,063/89,787.06 = 35,255/x
  3. Step 3: Cross multiply
    65,063x = 89,787.06 × 35,255
  4. Step 4: Simplify right side
    65,063x = 3,165,442,800.30
  5. Step 5: Solve for x
    x = 3,165,442,800.30/65,063
  6. Step 6: Final answer
    x = 48,651.97

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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.