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Finding the Fourth Proportional to 44,409.75, 66,619.06 and 12,820.58

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Solution

The fourth proportional to 44,409.75, 66,619.06 and 12,820.58 is: 19,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,409.75 : 66,619.06 = 12,820.58 : x
  2. Step 2: Convert to fraction form
    44,409.75/66,619.06 = 12,820.58/x
  3. Step 3: Cross multiply
    44,409.75x = 66,619.06 × 12,820.58
  4. Step 4: Simplify right side
    44,409.75x = 854,094,872.93
  5. Step 5: Solve for x
    x = 854,094,872.93/44,409.75
  6. Step 6: Final answer
    x = 19,232.15

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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.