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Finding the Fourth Proportional to 33,317.75, 45,978.57 and 18,210.60

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Solution

The fourth proportional to 33,317.75, 45,978.57 and 18,210.60 is: 25,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,317.75 : 45,978.57 = 18,210.60 : x
  2. Step 2: Convert to fraction form
    33,317.75/45,978.57 = 18,210.60/x
  3. Step 3: Cross multiply
    33,317.75x = 45,978.57 × 18,210.60
  4. Step 4: Simplify right side
    33,317.75x = 837,297,346.84
  5. Step 5: Solve for x
    x = 837,297,346.84/33,317.75
  6. Step 6: Final answer
    x = 25,130.67

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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.