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Finding the Fourth Proportional to 19,509.21, 26,918.02 and 11,852.33

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Solution

The fourth proportional to 19,509.21, 26,918.02 and 11,852.33 is: 16,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,509.21 : 26,918.02 = 11,852.33 : x
  2. Step 2: Convert to fraction form
    19,509.21/26,918.02 = 11,852.33/x
  3. Step 3: Cross multiply
    19,509.21x = 26,918.02 × 11,852.33
  4. Step 4: Simplify right side
    19,509.21x = 319,041,121.40
  5. Step 5: Solve for x
    x = 319,041,121.40/19,509.21
  6. Step 6: Final answer
    x = 16,353.36

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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.