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Finding the Fourth Proportional to 89,216.70, 133,824.96 and 26,887.20

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Solution

The fourth proportional to 89,216.70, 133,824.96 and 26,887.20 is: 40,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,216.70 : 133,824.96 = 26,887.20 : x
  2. Step 2: Convert to fraction form
    89,216.70/133,824.96 = 26,887.20/x
  3. Step 3: Cross multiply
    89,216.70x = 133,824.96 × 26,887.20
  4. Step 4: Simplify right side
    89,216.70x = 3,598,178,464.51
  5. Step 5: Solve for x
    x = 3,598,178,464.51/89,216.70
  6. Step 6: Final answer
    x = 40,330.77

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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.