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Finding the Fourth Proportional to 21,750.39, 32,629.68 and 6,955.33

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Solution

The fourth proportional to 21,750.39, 32,629.68 and 6,955.33 is: 10,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750.39 : 32,629.68 = 6,955.33 : x
  2. Step 2: Convert to fraction form
    21,750.39/32,629.68 = 6,955.33/x
  3. Step 3: Cross multiply
    21,750.39x = 32,629.68 × 6,955.33
  4. Step 4: Simplify right side
    21,750.39x = 226,950,192.19
  5. Step 5: Solve for x
    x = 226,950,192.19/21,750.39
  6. Step 6: Final answer
    x = 10,434.30

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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.