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Finding the Fourth Proportional to 7,662,476.58, 10,574,300.17 and 4,177,786.87

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Solution

The fourth proportional to 7,662,476.58, 10,574,300.17 and 4,177,786.87 is: 5,765,390.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662,476.58 : 10,574,300.17 = 4,177,786.87 : x
  2. Step 2: Convert to fraction form
    7,662,476.58/10,574,300.17 = 4,177,786.87/x
  3. Step 3: Cross multiply
    7,662,476.58x = 10,574,300.17 × 4,177,786.87
  4. Step 4: Simplify right side
    7,662,476.58x = 44,177,172,345,124.39
  5. Step 5: Solve for x
    x = 44,177,172,345,124.39/7,662,476.58
  6. Step 6: Final answer
    x = 5,765,390.85

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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.