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Finding the Fourth Proportional to 48,410.40, 72,626.40 and 18,825.60

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Solution

The fourth proportional to 48,410.40, 72,626.40 and 18,825.60 is: 28,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,410.40 : 72,626.40 = 18,825.60 : x
  2. Step 2: Convert to fraction form
    48,410.40/72,626.40 = 18,825.60/x
  3. Step 3: Cross multiply
    48,410.40x = 72,626.40 × 18,825.60
  4. Step 4: Simplify right side
    48,410.40x = 1,367,235,555.84
  5. Step 5: Solve for x
    x = 1,367,235,555.84/48,410.40
  6. Step 6: Final answer
    x = 28,242.60

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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.