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Finding the Fourth Proportional to 62,797.20, 86,661.74 and 34,503.60

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Solution

The fourth proportional to 62,797.20, 86,661.74 and 34,503.60 is: 47,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,797.20 : 86,661.74 = 34,503.60 : x
  2. Step 2: Convert to fraction form
    62,797.20/86,661.74 = 34,503.60/x
  3. Step 3: Cross multiply
    62,797.20x = 86,661.74 × 34,503.60
  4. Step 4: Simplify right side
    62,797.20x = 2,990,142,012.26
  5. Step 5: Solve for x
    x = 2,990,142,012.26/62,797.20
  6. Step 6: Final answer
    x = 47,615.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.