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Finding the Fourth Proportional to 66,713.88, 100,105.44 and 29,300.28

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Solution

The fourth proportional to 66,713.88, 100,105.44 and 29,300.28 is: 43,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,713.88 : 100,105.44 = 29,300.28 : x
  2. Step 2: Convert to fraction form
    66,713.88/100,105.44 = 29,300.28/x
  3. Step 3: Cross multiply
    66,713.88x = 100,105.44 × 29,300.28
  4. Step 4: Simplify right side
    66,713.88x = 2,933,117,421.52
  5. Step 5: Solve for x
    x = 2,933,117,421.52/66,713.88
  6. Step 6: Final answer
    x = 43,965.62

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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.