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Finding the Fourth Proportional to 11,893,079.45, 16,683,903.55 and 11,893,079.45

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Solution

The fourth proportional to 11,893,079.45, 16,683,903.55 and 11,893,079.45 is: 16,683,903.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893,079.45 : 16,683,903.55 = 11,893,079.45 : x
  2. Step 2: Convert to fraction form
    11,893,079.45/16,683,903.55 = 11,893,079.45/x
  3. Step 3: Cross multiply
    11,893,079.45x = 16,683,903.55 × 11,893,079.45
  4. Step 4: Simplify right side
    11,893,079.45x = 198,422,990,456,287.03
  5. Step 5: Solve for x
    x = 198,422,990,456,287.03/11,893,079.45
  6. Step 6: Final answer
    x = 16,683,903.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.