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Finding the Fourth Proportional to 6,659,314.72, 9,988,976.94 and 1,610,630.08

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Solution

The fourth proportional to 6,659,314.72, 9,988,976.94 and 1,610,630.08 is: 2,415,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659,314.72 : 9,988,976.94 = 1,610,630.08 : x
  2. Step 2: Convert to fraction form
    6,659,314.72/9,988,976.94 = 1,610,630.08/x
  3. Step 3: Cross multiply
    6,659,314.72x = 9,988,976.94 × 1,610,630.08
  4. Step 4: Simplify right side
    6,659,314.72x = 16,088,546,727,990.36
  5. Step 5: Solve for x
    x = 16,088,546,727,990.36/6,659,314.72
  6. Step 6: Final answer
    x = 2,415,946.30

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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.