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Finding the Fourth Proportional to 8,907,884.05, 13,371,274.86 and 7,889,823.25

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Solution

The fourth proportional to 8,907,884.05, 13,371,274.86 and 7,889,823.25 is: 11,843,103.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907,884.05 : 13,371,274.86 = 7,889,823.25 : x
  2. Step 2: Convert to fraction form
    8,907,884.05/13,371,274.86 = 7,889,823.25/x
  3. Step 3: Cross multiply
    8,907,884.05x = 13,371,274.86 × 7,889,823.25
  4. Step 4: Simplify right side
    8,907,884.05x = 105,496,995,272,568.48
  5. Step 5: Solve for x
    x = 105,496,995,272,568.48/8,907,884.05
  6. Step 6: Final answer
    x = 11,843,103.78

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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.