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Finding the Fourth Proportional to 19,464.60, 26,858.46 and 10,965.60

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Solution

The fourth proportional to 19,464.60, 26,858.46 and 10,965.60 is: 15,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,464.60 : 26,858.46 = 10,965.60 : x
  2. Step 2: Convert to fraction form
    19,464.60/26,858.46 = 10,965.60/x
  3. Step 3: Cross multiply
    19,464.60x = 26,858.46 × 10,965.60
  4. Step 4: Simplify right side
    19,464.60x = 294,519,128.98
  5. Step 5: Solve for x
    x = 294,519,128.98/19,464.60
  6. Step 6: Final answer
    x = 15,131.01

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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.