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Finding the Fourth Proportional to 9,395.87, 12,966.28 and 5,204.12

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Solution

The fourth proportional to 9,395.87, 12,966.28 and 5,204.12 is: 7,181.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,395.87 : 12,966.28 = 5,204.12 : x
  2. Step 2: Convert to fraction form
    9,395.87/12,966.28 = 5,204.12/x
  3. Step 3: Cross multiply
    9,395.87x = 12,966.28 × 5,204.12
  4. Step 4: Simplify right side
    9,395.87x = 67,477,999.23
  5. Step 5: Solve for x
    x = 67,477,999.23/9,395.87
  6. Step 6: Final answer
    x = 7,181.67

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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.