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Finding the Fourth Proportional to 19,536.48, 26,948.16 and 12,822.48

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Solution

The fourth proportional to 19,536.48, 26,948.16 and 12,822.48 is: 17,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,536.48 : 26,948.16 = 12,822.48 : x
  2. Step 2: Convert to fraction form
    19,536.48/26,948.16 = 12,822.48/x
  3. Step 3: Cross multiply
    19,536.48x = 26,948.16 × 12,822.48
  4. Step 4: Simplify right side
    19,536.48x = 345,542,242.64
  5. Step 5: Solve for x
    x = 345,542,242.64/19,536.48
  6. Step 6: Final answer
    x = 17,687.03

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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.