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Finding the Fourth Proportional to 89,459.28, 134,180.28 and 27,130.32

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Solution

The fourth proportional to 89,459.28, 134,180.28 and 27,130.32 is: 40,692.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,459.28 : 134,180.28 = 27,130.32 : x
  2. Step 2: Convert to fraction form
    89,459.28/134,180.28 = 27,130.32/x
  3. Step 3: Cross multiply
    89,459.28x = 134,180.28 × 27,130.32
  4. Step 4: Simplify right side
    89,459.28x = 3,640,353,934.09
  5. Step 5: Solve for x
    x = 3,640,353,934.09/89,459.28
  6. Step 6: Final answer
    x = 40,692.86

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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.