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Finding the Fourth Proportional to 18,047.08, 24,905.12 and 9,980.60

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Solution

The fourth proportional to 18,047.08, 24,905.12 and 9,980.60 is: 13,773.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,047.08 : 24,905.12 = 9,980.60 : x
  2. Step 2: Convert to fraction form
    18,047.08/24,905.12 = 9,980.60/x
  3. Step 3: Cross multiply
    18,047.08x = 24,905.12 × 9,980.60
  4. Step 4: Simplify right side
    18,047.08x = 248,568,040.67
  5. Step 5: Solve for x
    x = 248,568,040.67/18,047.08
  6. Step 6: Final answer
    x = 13,773.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.