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Finding the Fourth Proportional to 7,188.90, 10,783.24 and 2,258.83

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Solution

The fourth proportional to 7,188.90, 10,783.24 and 2,258.83 is: 3,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,188.90 : 10,783.24 = 2,258.83 : x
  2. Step 2: Convert to fraction form
    7,188.90/10,783.24 = 2,258.83/x
  3. Step 3: Cross multiply
    7,188.90x = 10,783.24 × 2,258.83
  4. Step 4: Simplify right side
    7,188.90x = 24,357,494.72
  5. Step 5: Solve for x
    x = 24,357,494.72/7,188.90
  6. Step 6: Final answer
    x = 3,388.21

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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.