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Finding the Fourth Proportional to 19,360.22, 26,726.48 and 12,984.48

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Solution

The fourth proportional to 19,360.22, 26,726.48 and 12,984.48 is: 17,924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360.22 : 26,726.48 = 12,984.48 : x
  2. Step 2: Convert to fraction form
    19,360.22/26,726.48 = 12,984.48/x
  3. Step 3: Cross multiply
    19,360.22x = 26,726.48 × 12,984.48
  4. Step 4: Simplify right side
    19,360.22x = 347,029,427.38
  5. Step 5: Solve for x
    x = 347,029,427.38/19,360.22
  6. Step 6: Final answer
    x = 17,924.87

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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.