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Finding the Fourth Proportional to 19,751.64, 27,257.28 and 10,799.16

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Solution

The fourth proportional to 19,751.64, 27,257.28 and 10,799.16 is: 14,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.64 : 27,257.28 = 10,799.16 : x
  2. Step 2: Convert to fraction form
    19,751.64/27,257.28 = 10,799.16/x
  3. Step 3: Cross multiply
    19,751.64x = 27,257.28 × 10,799.16
  4. Step 4: Simplify right side
    19,751.64x = 294,355,727.88
  5. Step 5: Solve for x
    x = 294,355,727.88/19,751.64
  6. Step 6: Final answer
    x = 14,902.85

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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.