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Finding the Fourth Proportional to 16,220.95, 22,384.91 and 8,768.95

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Solution

The fourth proportional to 16,220.95, 22,384.91 and 8,768.95 is: 12,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.95 : 22,384.91 = 8,768.95 : x
  2. Step 2: Convert to fraction form
    16,220.95/22,384.91 = 8,768.95/x
  3. Step 3: Cross multiply
    16,220.95x = 22,384.91 × 8,768.95
  4. Step 4: Simplify right side
    16,220.95x = 196,292,156.54
  5. Step 5: Solve for x
    x = 196,292,156.54/16,220.95
  6. Step 6: Final answer
    x = 12,101.15

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Half scale
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Double scale
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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.