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Finding the Fourth Proportional to 8,654.93, 11,943.86 and 5,072.01

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Solution

The fourth proportional to 8,654.93, 11,943.86 and 5,072.01 is: 6,999.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.93 : 11,943.86 = 5,072.01 : x
  2. Step 2: Convert to fraction form
    8,654.93/11,943.86 = 5,072.01/x
  3. Step 3: Cross multiply
    8,654.93x = 11,943.86 × 5,072.01
  4. Step 4: Simplify right side
    8,654.93x = 60,579,377.36
  5. Step 5: Solve for x
    x = 60,579,377.36/8,654.93
  6. Step 6: Final answer
    x = 6,999.41

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1.5x scale

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.