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Finding the Fourth Proportional to 19,438.25, 26,828.03 and 14,714.33

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Solution

The fourth proportional to 19,438.25, 26,828.03 and 14,714.33 is: 20,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.25 : 26,828.03 = 14,714.33 : x
  2. Step 2: Convert to fraction form
    19,438.25/26,828.03 = 14,714.33/x
  3. Step 3: Cross multiply
    19,438.25x = 26,828.03 × 14,714.33
  4. Step 4: Simplify right side
    19,438.25x = 394,756,413.10
  5. Step 5: Solve for x
    x = 394,756,413.10/19,438.25
  6. Step 6: Final answer
    x = 20,308.23

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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.