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Finding the Fourth Proportional to 12,236.69, 18,355.44 and 7,503.86

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Solution

The fourth proportional to 12,236.69, 18,355.44 and 7,503.86 is: 11,256.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.69 : 18,355.44 = 7,503.86 : x
  2. Step 2: Convert to fraction form
    12,236.69/18,355.44 = 7,503.86/x
  3. Step 3: Cross multiply
    12,236.69x = 18,355.44 × 7,503.86
  4. Step 4: Simplify right side
    12,236.69x = 137,736,652.00
  5. Step 5: Solve for x
    x = 137,736,652.00/12,236.69
  6. Step 6: Final answer
    x = 11,256.04

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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.