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Finding the Fourth Proportional to 44,651.68, 66,975.60 and 13,486

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Solution

The fourth proportional to 44,651.68, 66,975.60 and 13,486 is: 20,228.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,651.68 : 66,975.60 = 13,486 : x
  2. Step 2: Convert to fraction form
    44,651.68/66,975.60 = 13,486/x
  3. Step 3: Cross multiply
    44,651.68x = 66,975.60 × 13,486
  4. Step 4: Simplify right side
    44,651.68x = 903,232,941.60
  5. Step 5: Solve for x
    x = 903,232,941.60/44,651.68
  6. Step 6: Final answer
    x = 20,228.42

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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.