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Finding the Fourth Proportional to 65,102.76, 89,817.66 and 36,787.32

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Solution

The fourth proportional to 65,102.76, 89,817.66 and 36,787.32 is: 50,752.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,102.76 : 89,817.66 = 36,787.32 : x
  2. Step 2: Convert to fraction form
    65,102.76/89,817.66 = 36,787.32/x
  3. Step 3: Cross multiply
    65,102.76x = 89,817.66 × 36,787.32
  4. Step 4: Simplify right side
    65,102.76x = 3,304,151,000.07
  5. Step 5: Solve for x
    x = 3,304,151,000.07/65,102.76
  6. Step 6: Final answer
    x = 50,752.86

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1.5x scale

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.