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Finding the Fourth Proportional to 49,662.40, 74,494.40 and 12,222.60

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Solution

The fourth proportional to 49,662.40, 74,494.40 and 12,222.60 is: 18,334.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,662.40 : 74,494.40 = 12,222.60 : x
  2. Step 2: Convert to fraction form
    49,662.40/74,494.40 = 12,222.60/x
  3. Step 3: Cross multiply
    49,662.40x = 74,494.40 × 12,222.60
  4. Step 4: Simplify right side
    49,662.40x = 910,515,253.44
  5. Step 5: Solve for x
    x = 910,515,253.44/49,662.40
  6. Step 6: Final answer
    x = 18,334.10

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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.