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Finding the Fourth Proportional to 19,651.05, 27,119.02 and 10,698.71

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Solution

The fourth proportional to 19,651.05, 27,119.02 and 10,698.71 is: 14,764.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.05 : 27,119.02 = 10,698.71 : x
  2. Step 2: Convert to fraction form
    19,651.05/27,119.02 = 10,698.71/x
  3. Step 3: Cross multiply
    19,651.05x = 27,119.02 × 10,698.71
  4. Step 4: Simplify right side
    19,651.05x = 290,138,368.12
  5. Step 5: Solve for x
    x = 290,138,368.12/19,651.05
  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.