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Finding the Fourth Proportional to 12,896,903.84, 17,797,868.54 and 7,016,571.44

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Solution

The fourth proportional to 12,896,903.84, 17,797,868.54 and 7,016,571.44 is: 9,682,945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896,903.84 : 17,797,868.54 = 7,016,571.44 : x
  2. Step 2: Convert to fraction form
    12,896,903.84/17,797,868.54 = 7,016,571.44/x
  3. Step 3: Cross multiply
    12,896,903.84x = 17,797,868.54 × 7,016,571.44
  4. Step 4: Simplify right side
    12,896,903.84x = 124,880,016,090,638.50
  5. Step 5: Solve for x
    x = 124,880,016,090,638.50/12,896,903.84
  6. Step 6: Final answer
    x = 9,682,945.43

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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.