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Finding the Fourth Proportional to 22,199.69, 30,635.63 and 12,767.63

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Solution

The fourth proportional to 22,199.69, 30,635.63 and 12,767.63 is: 17,619.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,199.69 : 30,635.63 = 12,767.63 : x
  2. Step 2: Convert to fraction form
    22,199.69/30,635.63 = 12,767.63/x
  3. Step 3: Cross multiply
    22,199.69x = 30,635.63 × 12,767.63
  4. Step 4: Simplify right side
    22,199.69x = 391,144,267.40
  5. Step 5: Solve for x
    x = 391,144,267.40/22,199.69
  6. Step 6: Final answer
    x = 17,619.36

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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.