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Finding the Fourth Proportional to 10,661,644.75, 14,713,069.76 and 5,766,866.59

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Solution

The fourth proportional to 10,661,644.75, 14,713,069.76 and 5,766,866.59 is: 7,958,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661,644.75 : 14,713,069.76 = 5,766,866.59 : x
  2. Step 2: Convert to fraction form
    10,661,644.75/14,713,069.76 = 5,766,866.59/x
  3. Step 3: Cross multiply
    10,661,644.75x = 14,713,069.76 × 5,766,866.59
  4. Step 4: Simplify right side
    10,661,644.75x = 84,848,310,435,283.31
  5. Step 5: Solve for x
    x = 84,848,310,435,283.31/10,661,644.75
  6. Step 6: Final answer
    x = 7,958,275.90

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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.