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Finding the Fourth Proportional to 13,843,548.96, 19,103,988.96 and 8,045,724.48

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Solution

The fourth proportional to 13,843,548.96, 19,103,988.96 and 8,045,724.48 is: 11,103,036.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843,548.96 : 19,103,988.96 = 8,045,724.48 : x
  2. Step 2: Convert to fraction form
    13,843,548.96/19,103,988.96 = 8,045,724.48/x
  3. Step 3: Cross multiply
    13,843,548.96x = 19,103,988.96 × 8,045,724.48
  4. Step 4: Simplify right side
    13,843,548.96x = 153,705,431,641,121.75
  5. Step 5: Solve for x
    x = 153,705,431,641,121.75/13,843,548.96
  6. Step 6: Final answer
    x = 11,103,036.66

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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.