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Finding the Fourth Proportional to 21,053.44, 29,026.80 and 17,262.88

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Solution

The fourth proportional to 21,053.44, 29,026.80 and 17,262.88 is: 23,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.44 : 29,026.80 = 17,262.88 : x
  2. Step 2: Convert to fraction form
    21,053.44/29,026.80 = 17,262.88/x
  3. Step 3: Cross multiply
    21,053.44x = 29,026.80 × 17,262.88
  4. Step 4: Simplify right side
    21,053.44x = 501,086,165.18
  5. Step 5: Solve for x
    x = 501,086,165.18/21,053.44
  6. Step 6: Final answer
    x = 23,800.68

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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.