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Finding the Fourth Proportional to 22,341.67, 30,842.01 and 12,908.41

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Solution

The fourth proportional to 22,341.67, 30,842.01 and 12,908.41 is: 17,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,341.67 : 30,842.01 = 12,908.41 : x
  2. Step 2: Convert to fraction form
    22,341.67/30,842.01 = 12,908.41/x
  3. Step 3: Cross multiply
    22,341.67x = 30,842.01 × 12,908.41
  4. Step 4: Simplify right side
    22,341.67x = 398,121,233.20
  5. Step 5: Solve for x
    x = 398,121,233.20/22,341.67
  6. Step 6: Final answer
    x = 17,819.67

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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.