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Finding the Fourth Proportional to 86,573.84, 129,981.56 and 44,489.59

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Solution

The fourth proportional to 86,573.84, 129,981.56 and 44,489.59 is: 66,796.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,573.84 : 129,981.56 = 44,489.59 : x
  2. Step 2: Convert to fraction form
    86,573.84/129,981.56 = 44,489.59/x
  3. Step 3: Cross multiply
    86,573.84x = 129,981.56 × 44,489.59
  4. Step 4: Simplify right side
    86,573.84x = 5,782,825,764.56
  5. Step 5: Solve for x
    x = 5,782,825,764.56/86,573.84
  6. Step 6: Final answer
    x = 66,796.46

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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.