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Finding the Fourth Proportional to 22,012.76, 30,383.03 and 13,516.92

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Solution

The fourth proportional to 22,012.76, 30,383.03 and 13,516.92 is: 18,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.76 : 30,383.03 = 13,516.92 : x
  2. Step 2: Convert to fraction form
    22,012.76/30,383.03 = 13,516.92/x
  3. Step 3: Cross multiply
    22,012.76x = 30,383.03 × 13,516.92
  4. Step 4: Simplify right side
    22,012.76x = 410,685,019.66
  5. Step 5: Solve for x
    x = 410,685,019.66/22,012.76
  6. Step 6: Final answer
    x = 18,656.68

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Half scale
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Double scale
Find fourth proportional to 22,013.76, 30,384.41 and 13,517.92
Similar ratio
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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.