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Finding the Fourth Proportional to 22,194.63, 30,630.02 and 12,762.99

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Solution

The fourth proportional to 22,194.63, 30,630.02 and 12,762.99 is: 17,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,194.63 : 30,630.02 = 12,762.99 : x
  2. Step 2: Convert to fraction form
    22,194.63/30,630.02 = 12,762.99/x
  3. Step 3: Cross multiply
    22,194.63x = 30,630.02 × 12,762.99
  4. Step 4: Simplify right side
    22,194.63x = 390,930,575.14
  5. Step 5: Solve for x
    x = 390,930,575.14/22,194.63
  6. Step 6: Final answer
    x = 17,613.75

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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.