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Finding the Fourth Proportional to 19,650.74, 27,118.51 and 10,698.74

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Solution

The fourth proportional to 19,650.74, 27,118.51 and 10,698.74 is: 14,764.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.74 : 27,118.51 = 10,698.74 : x
  2. Step 2: Convert to fraction form
    19,650.74/27,118.51 = 10,698.74/x
  3. Step 3: Cross multiply
    19,650.74x = 27,118.51 × 10,698.74
  4. Step 4: Simplify right side
    19,650.74x = 290,133,812.73
  5. Step 5: Solve for x
    x = 290,133,812.73/19,650.74
  6. Step 6: Final answer
    x = 14,764.52

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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.