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Finding the Fourth Proportional to 19,751.16, 27,258.50 and 11,793.32

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Solution

The fourth proportional to 19,751.16, 27,258.50 and 11,793.32 is: 16,275.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.16 : 27,258.50 = 11,793.32 : x
  2. Step 2: Convert to fraction form
    19,751.16/27,258.50 = 11,793.32/x
  3. Step 3: Cross multiply
    19,751.16x = 27,258.50 × 11,793.32
  4. Step 4: Simplify right side
    19,751.16x = 321,468,213.22
  5. Step 5: Solve for x
    x = 321,468,213.22/19,751.16
  6. Step 6: Final answer
    x = 16,275.92

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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.