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Finding the Fourth Proportional to 19,574.90, 26,993.48 and 16,751.64

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Solution

The fourth proportional to 19,574.90, 26,993.48 and 16,751.64 is: 23,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,574.90 : 26,993.48 = 16,751.64 : x
  2. Step 2: Convert to fraction form
    19,574.90/26,993.48 = 16,751.64/x
  3. Step 3: Cross multiply
    19,574.90x = 26,993.48 × 16,751.64
  4. Step 4: Simplify right side
    19,574.90x = 452,185,059.31
  5. Step 5: Solve for x
    x = 452,185,059.31/19,574.90
  6. Step 6: Final answer
    x = 23,100.25

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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.