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Finding the Fourth Proportional to 18,649.98, 27,967.68 and 6,959.52

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Solution

The fourth proportional to 18,649.98, 27,967.68 and 6,959.52 is: 10,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.98 : 27,967.68 = 6,959.52 : x
  2. Step 2: Convert to fraction form
    18,649.98/27,967.68 = 6,959.52/x
  3. Step 3: Cross multiply
    18,649.98x = 27,967.68 × 6,959.52
  4. Step 4: Simplify right side
    18,649.98x = 194,641,628.31
  5. Step 5: Solve for x
    x = 194,641,628.31/18,649.98
  6. Step 6: Final answer
    x = 10,436.56

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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.