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Finding the Fourth Proportional to 21,933, 32,914.62 and 19,008.36

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Solution

The fourth proportional to 21,933, 32,914.62 and 19,008.36 is: 28,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933 : 32,914.62 = 19,008.36 : x
  2. Step 2: Convert to fraction form
    21,933/32,914.62 = 19,008.36/x
  3. Step 3: Cross multiply
    21,933x = 32,914.62 × 19,008.36
  4. Step 4: Simplify right side
    21,933x = 625,652,946.22
  5. Step 5: Solve for x
    x = 625,652,946.22/21,933
  6. Step 6: Final answer
    x = 28,525.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.