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Finding the Fourth Proportional to 19,759.48, 27,268.01 and 10,684.78

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Solution

The fourth proportional to 19,759.48, 27,268.01 and 10,684.78 is: 14,744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.48 : 27,268.01 = 10,684.78 : x
  2. Step 2: Convert to fraction form
    19,759.48/27,268.01 = 10,684.78/x
  3. Step 3: Cross multiply
    19,759.48x = 27,268.01 × 10,684.78
  4. Step 4: Simplify right side
    19,759.48x = 291,352,551.55
  5. Step 5: Solve for x
    x = 291,352,551.55/19,759.48
  6. Step 6: Final answer
    x = 14,744.95

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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.