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Finding the Fourth Proportional to 66,887.28, 100,346.04 and 33,623.28

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Solution

The fourth proportional to 66,887.28, 100,346.04 and 33,623.28 is: 50,442.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,887.28 : 100,346.04 = 33,623.28 : x
  2. Step 2: Convert to fraction form
    66,887.28/100,346.04 = 33,623.28/x
  3. Step 3: Cross multiply
    66,887.28x = 100,346.04 × 33,623.28
  4. Step 4: Simplify right side
    66,887.28x = 3,373,962,999.81
  5. Step 5: Solve for x
    x = 3,373,962,999.81/66,887.28
  6. Step 6: Final answer
    x = 50,442.52

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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.