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Finding the Fourth Proportional to 11,800.95, 17,697.21 and 3,902.01

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Solution

The fourth proportional to 11,800.95, 17,697.21 and 3,902.01 is: 5,851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,800.95 : 17,697.21 = 3,902.01 : x
  2. Step 2: Convert to fraction form
    11,800.95/17,697.21 = 3,902.01/x
  3. Step 3: Cross multiply
    11,800.95x = 17,697.21 × 3,902.01
  4. Step 4: Simplify right side
    11,800.95x = 69,054,688.71
  5. Step 5: Solve for x
    x = 69,054,688.71/11,800.95
  6. Step 6: Final answer
    x = 5,851.62

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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.