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Finding the Fourth Proportional to 9,978,662.10, 14,967,993.15 and 6,790,016.10

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Solution

The fourth proportional to 9,978,662.10, 14,967,993.15 and 6,790,016.10 is: 10,185,024.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,662.10 : 14,967,993.15 = 6,790,016.10 : x
  2. Step 2: Convert to fraction form
    9,978,662.10/14,967,993.15 = 6,790,016.10/x
  3. Step 3: Cross multiply
    9,978,662.10x = 14,967,993.15 × 6,790,016.10
  4. Step 4: Simplify right side
    9,978,662.10x = 101,632,914,473,189.72
  5. Step 5: Solve for x
    x = 101,632,914,473,189.72/9,978,662.10
  6. Step 6: Final answer
    x = 10,185,024.15

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Similar ratio
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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.