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Finding the Fourth Proportional to 12,401.84, 17,114.85 and 6,812.84

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Solution

The fourth proportional to 12,401.84, 17,114.85 and 6,812.84 is: 9,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.84 : 17,114.85 = 6,812.84 : x
  2. Step 2: Convert to fraction form
    12,401.84/17,114.85 = 6,812.84/x
  3. Step 3: Cross multiply
    12,401.84x = 17,114.85 × 6,812.84
  4. Step 4: Simplify right side
    12,401.84x = 116,600,734.67
  5. Step 5: Solve for x
    x = 116,600,734.67/12,401.84
  6. Step 6: Final answer
    x = 9,401.89

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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.