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Finding the Fourth Proportional to 9,968,728.54, 13,759,404.80 and 6,492,728.97

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Solution

The fourth proportional to 9,968,728.54, 13,759,404.80 and 6,492,728.97 is: 8,961,632.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,968,728.54 : 13,759,404.80 = 6,492,728.97 : x
  2. Step 2: Convert to fraction form
    9,968,728.54/13,759,404.80 = 6,492,728.97/x
  3. Step 3: Cross multiply
    9,968,728.54x = 13,759,404.80 × 6,492,728.97
  4. Step 4: Simplify right side
    9,968,728.54x = 89,336,086,053,656.39
  5. Step 5: Solve for x
    x = 89,336,086,053,656.39/9,968,728.54
  6. Step 6: Final answer
    x = 8,961,632.94

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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.