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Finding the Fourth Proportional to 89,858.39, 134,787.58 and 27,520.79

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Solution

The fourth proportional to 89,858.39, 134,787.58 and 27,520.79 is: 41,281.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,858.39 : 134,787.58 = 27,520.79 : x
  2. Step 2: Convert to fraction form
    89,858.39/134,787.58 = 27,520.79/x
  3. Step 3: Cross multiply
    89,858.39x = 134,787.58 × 27,520.79
  4. Step 4: Simplify right side
    89,858.39x = 3,709,459,941.05
  5. Step 5: Solve for x
    x = 3,709,459,941.05/89,858.39
  6. Step 6: Final answer
    x = 41,281.18

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1.5x scale

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.