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Finding the Fourth Proportional to 61,213.38, 91,629.26 and 47,136.84

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Solution

The fourth proportional to 61,213.38, 91,629.26 and 47,136.84 is: 70,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,213.38 : 91,629.26 = 47,136.84 : x
  2. Step 2: Convert to fraction form
    61,213.38/91,629.26 = 47,136.84/x
  3. Step 3: Cross multiply
    61,213.38x = 91,629.26 × 47,136.84
  4. Step 4: Simplify right side
    61,213.38x = 4,319,113,532.25
  5. Step 5: Solve for x
    x = 4,319,113,532.25/61,213.38
  6. Step 6: Final answer
    x = 70,558.32

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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.