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Finding the Fourth Proportional to 22,283.70, 30,751.01 and 12,211.93

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Solution

The fourth proportional to 22,283.70, 30,751.01 and 12,211.93 is: 16,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,283.70 : 30,751.01 = 12,211.93 : x
  2. Step 2: Convert to fraction form
    22,283.70/30,751.01 = 12,211.93/x
  3. Step 3: Cross multiply
    22,283.70x = 30,751.01 × 12,211.93
  4. Step 4: Simplify right side
    22,283.70x = 375,529,058.32
  5. Step 5: Solve for x
    x = 375,529,058.32/22,283.70
  6. Step 6: Final answer
    x = 16,852.19

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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.