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Finding the Fourth Proportional to 22,143, 30,559.26 and 12,208.92

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Solution

The fourth proportional to 22,143, 30,559.26 and 12,208.92 is: 16,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143 : 30,559.26 = 12,208.92 : x
  2. Step 2: Convert to fraction form
    22,143/30,559.26 = 12,208.92/x
  3. Step 3: Cross multiply
    22,143x = 30,559.26 × 12,208.92
  4. Step 4: Simplify right side
    22,143x = 373,095,560.60
  5. Step 5: Solve for x
    x = 373,095,560.60/22,143
  6. Step 6: Final answer
    x = 16,849.37

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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.