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Finding the Fourth Proportional to 17,921.56, 26,893.14 and 6,242.98

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Solution

The fourth proportional to 17,921.56, 26,893.14 and 6,242.98 is: 9,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.56 : 26,893.14 = 6,242.98 : x
  2. Step 2: Convert to fraction form
    17,921.56/26,893.14 = 6,242.98/x
  3. Step 3: Cross multiply
    17,921.56x = 26,893.14 × 6,242.98
  4. Step 4: Simplify right side
    17,921.56x = 167,893,335.16
  5. Step 5: Solve for x
    x = 167,893,335.16/17,921.56
  6. Step 6: Final answer
    x = 9,368.23

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1.5x scale

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.