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Finding the Fourth Proportional to 22,323.66, 30,802.86 and 12,761.88

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Solution

The fourth proportional to 22,323.66, 30,802.86 and 12,761.88 is: 17,609.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,323.66 : 30,802.86 = 12,761.88 : x
  2. Step 2: Convert to fraction form
    22,323.66/30,802.86 = 12,761.88/x
  3. Step 3: Cross multiply
    22,323.66x = 30,802.86 × 12,761.88
  4. Step 4: Simplify right side
    22,323.66x = 393,102,402.98
  5. Step 5: Solve for x
    x = 393,102,402.98/22,323.66
  6. Step 6: Final answer
    x = 17,609.23

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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.