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Finding the Fourth Proportional to 19,464.74, 26,859.73 and 10,964.15

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Solution

The fourth proportional to 19,464.74, 26,859.73 and 10,964.15 is: 15,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,464.74 : 26,859.73 = 10,964.15 : x
  2. Step 2: Convert to fraction form
    19,464.74/26,859.73 = 10,964.15/x
  3. Step 3: Cross multiply
    19,464.74x = 26,859.73 × 10,964.15
  4. Step 4: Simplify right side
    19,464.74x = 294,494,053.86
  5. Step 5: Solve for x
    x = 294,494,053.86/19,464.74
  6. Step 6: Final answer
    x = 15,129.62

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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.