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Finding the Fourth Proportional to 48,978.40, 73,467.60 and 44,216.80

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Solution

The fourth proportional to 48,978.40, 73,467.60 and 44,216.80 is: 66,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,978.40 : 73,467.60 = 44,216.80 : x
  2. Step 2: Convert to fraction form
    48,978.40/73,467.60 = 44,216.80/x
  3. Step 3: Cross multiply
    48,978.40x = 73,467.60 × 44,216.80
  4. Step 4: Simplify right side
    48,978.40x = 3,248,502,175.68
  5. Step 5: Solve for x
    x = 3,248,502,175.68/48,978.40
  6. Step 6: Final answer
    x = 66,325.20

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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.