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Finding the Fourth Proportional to 6,644,406.70, 9,966,091.65 and 2,600,109.10

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Solution

The fourth proportional to 6,644,406.70, 9,966,091.65 and 2,600,109.10 is: 3,899,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644,406.70 : 9,966,091.65 = 2,600,109.10 : x
  2. Step 2: Convert to fraction form
    6,644,406.70/9,966,091.65 = 2,600,109.10/x
  3. Step 3: Cross multiply
    6,644,406.70x = 9,966,091.65 × 2,600,109.10
  4. Step 4: Simplify right side
    6,644,406.70x = 25,912,925,590,599.02
  5. Step 5: Solve for x
    x = 25,912,925,590,599.02/6,644,406.70
  6. Step 6: Final answer
    x = 3,899,960.79

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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.