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Finding the Fourth Proportional to 12,401.54, 17,113.08 and 6,812.54

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Solution

The fourth proportional to 12,401.54, 17,113.08 and 6,812.54 is: 9,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.54 : 17,113.08 = 6,812.54 : x
  2. Step 2: Convert to fraction form
    12,401.54/17,113.08 = 6,812.54/x
  3. Step 3: Cross multiply
    12,401.54x = 17,113.08 × 6,812.54
  4. Step 4: Simplify right side
    12,401.54x = 116,583,542.02
  5. Step 5: Solve for x
    x = 116,583,542.02/12,401.54
  6. Step 6: Final answer
    x = 9,400.73

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Double scale
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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.