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Finding the Fourth Proportional to 18,447.90, 27,665.05 and 6,598.46

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Solution

The fourth proportional to 18,447.90, 27,665.05 and 6,598.46 is: 9,895.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.90 : 27,665.05 = 6,598.46 : x
  2. Step 2: Convert to fraction form
    18,447.90/27,665.05 = 6,598.46/x
  3. Step 3: Cross multiply
    18,447.90x = 27,665.05 × 6,598.46
  4. Step 4: Simplify right side
    18,447.90x = 182,546,725.82
  5. Step 5: Solve for x
    x = 182,546,725.82/18,447.90
  6. Step 6: Final answer
    x = 9,895.26

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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.