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Finding the Fourth Proportional to 21,703.52, 32,556.22 and 10,619.54

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Solution

The fourth proportional to 21,703.52, 32,556.22 and 10,619.54 is: 15,929.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.52 : 32,556.22 = 10,619.54 : x
  2. Step 2: Convert to fraction form
    21,703.52/32,556.22 = 10,619.54/x
  3. Step 3: Cross multiply
    21,703.52x = 32,556.22 × 10,619.54
  4. Step 4: Simplify right side
    21,703.52x = 345,732,080.54
  5. Step 5: Solve for x
    x = 345,732,080.54/21,703.52
  6. Step 6: Final answer
    x = 15,929.77

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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.