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Finding the Fourth Proportional to 66,881.48, 100,337.63 and 22,507.07

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Solution

The fourth proportional to 66,881.48, 100,337.63 and 22,507.07 is: 33,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,881.48 : 100,337.63 = 22,507.07 : x
  2. Step 2: Convert to fraction form
    66,881.48/100,337.63 = 22,507.07/x
  3. Step 3: Cross multiply
    66,881.48x = 100,337.63 × 22,507.07
  4. Step 4: Simplify right side
    66,881.48x = 2,258,305,447.82
  5. Step 5: Solve for x
    x = 2,258,305,447.82/66,881.48
  6. Step 6: Final answer
    x = 33,765.78

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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.