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Finding the Fourth Proportional to 43,706.25, 65,570.90 and 15,629.09

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Solution

The fourth proportional to 43,706.25, 65,570.90 and 15,629.09 is: 23,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,706.25 : 65,570.90 = 15,629.09 : x
  2. Step 2: Convert to fraction form
    43,706.25/65,570.90 = 15,629.09/x
  3. Step 3: Cross multiply
    43,706.25x = 65,570.90 × 15,629.09
  4. Step 4: Simplify right side
    43,706.25x = 1,024,813,091.48
  5. Step 5: Solve for x
    x = 1,024,813,091.48/43,706.25
  6. Step 6: Final answer
    x = 23,447.75

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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.