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Finding the Fourth Proportional to 48,626.60, 67,939 and 48,626.60

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Solution

The fourth proportional to 48,626.60, 67,939 and 48,626.60 is: 67,939

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,626.60 : 67,939 = 48,626.60 : x
  2. Step 2: Convert to fraction form
    48,626.60/67,939 = 48,626.60/x
  3. Step 3: Cross multiply
    48,626.60x = 67,939 × 48,626.60
  4. Step 4: Simplify right side
    48,626.60x = 3,303,642,577.40
  5. Step 5: Solve for x
    x = 3,303,642,577.40/48,626.60
  6. Step 6: Final answer
    x = 67,939

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.