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Finding the Fourth Proportional to 14,518.76, 21,768.78 and 6,204.20

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Solution

The fourth proportional to 14,518.76, 21,768.78 and 6,204.20 is: 9,302.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.76 : 21,768.78 = 6,204.20 : x
  2. Step 2: Convert to fraction form
    14,518.76/21,768.78 = 6,204.20/x
  3. Step 3: Cross multiply
    14,518.76x = 21,768.78 × 6,204.20
  4. Step 4: Simplify right side
    14,518.76x = 135,057,864.88
  5. Step 5: Solve for x
    x = 135,057,864.88/14,518.76
  6. Step 6: Final answer
    x = 9,302.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.