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Finding the Fourth Proportional to 6,662,706.78, 9,194,556.06 and 3,606,913.74

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Solution

The fourth proportional to 6,662,706.78, 9,194,556.06 and 3,606,913.74 is: 4,977,552.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,662,706.78 : 9,194,556.06 = 3,606,913.74 : x
  2. Step 2: Convert to fraction form
    6,662,706.78/9,194,556.06 = 3,606,913.74/x
  3. Step 3: Cross multiply
    6,662,706.78x = 9,194,556.06 × 3,606,913.74
  4. Step 4: Simplify right side
    6,662,706.78x = 33,163,970,586,014.27
  5. Step 5: Solve for x
    x = 33,163,970,586,014.27/6,662,706.78
  6. Step 6: Final answer
    x = 4,977,552.17

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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.