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Finding the Fourth Proportional to 19,550.92, 26,971.22 and 12,484.48

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Solution

The fourth proportional to 19,550.92, 26,971.22 and 12,484.48 is: 17,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,550.92 : 26,971.22 = 12,484.48 : x
  2. Step 2: Convert to fraction form
    19,550.92/26,971.22 = 12,484.48/x
  3. Step 3: Cross multiply
    19,550.92x = 26,971.22 × 12,484.48
  4. Step 4: Simplify right side
    19,550.92x = 336,721,656.67
  5. Step 5: Solve for x
    x = 336,721,656.67/19,550.92
  6. Step 6: Final answer
    x = 17,222.80

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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.