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Finding the Fourth Proportional to 62,797.50, 86,661.18 and 34,503.80

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Solution

The fourth proportional to 62,797.50, 86,661.18 and 34,503.80 is: 47,615.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,797.50 : 86,661.18 = 34,503.80 : x
  2. Step 2: Convert to fraction form
    62,797.50/86,661.18 = 34,503.80/x
  3. Step 3: Cross multiply
    62,797.50x = 86,661.18 × 34,503.80
  4. Step 4: Simplify right side
    62,797.50x = 2,990,139,589.18
  5. Step 5: Solve for x
    x = 2,990,139,589.18/62,797.50
  6. Step 6: Final answer
    x = 47,615.58

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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.