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Finding the Fourth Proportional to 22,356.59, 30,852.85 and 12,285.39

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Solution

The fourth proportional to 22,356.59, 30,852.85 and 12,285.39 is: 16,954.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,356.59 : 30,852.85 = 12,285.39 : x
  2. Step 2: Convert to fraction form
    22,356.59/30,852.85 = 12,285.39/x
  3. Step 3: Cross multiply
    22,356.59x = 30,852.85 × 12,285.39
  4. Step 4: Simplify right side
    22,356.59x = 379,039,264.15
  5. Step 5: Solve for x
    x = 379,039,264.15/22,356.59
  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.