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Finding the Fourth Proportional to 59,978.20, 90,022.18 and 30,416.44

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Solution

The fourth proportional to 59,978.20, 90,022.18 and 30,416.44 is: 45,652.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,978.20 : 90,022.18 = 30,416.44 : x
  2. Step 2: Convert to fraction form
    59,978.20/90,022.18 = 30,416.44/x
  3. Step 3: Cross multiply
    59,978.20x = 90,022.18 × 30,416.44
  4. Step 4: Simplify right side
    59,978.20x = 2,738,154,236.64
  5. Step 5: Solve for x
    x = 2,738,154,236.64/59,978.20
  6. Step 6: Final answer
    x = 45,652.49

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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.