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Finding the Fourth Proportional to 22,356.99, 30,852.81 and 12,285.63

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Solution

The fourth proportional to 22,356.99, 30,852.81 and 12,285.63 is: 16,954.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,356.99 : 30,852.81 = 12,285.63 : x
  2. Step 2: Convert to fraction form
    22,356.99/30,852.81 = 12,285.63/x
  3. Step 3: Cross multiply
    22,356.99x = 30,852.81 × 12,285.63
  4. Step 4: Simplify right side
    22,356.99x = 379,046,208.12
  5. Step 5: Solve for x
    x = 379,046,208.12/22,356.99
  6. Step 6: Final answer
    x = 16,954.26

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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.