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Finding the Fourth Proportional to 12,317.54, 18,477.05 and 8,367.12

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Solution

The fourth proportional to 12,317.54, 18,477.05 and 8,367.12 is: 12,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.54 : 18,477.05 = 8,367.12 : x
  2. Step 2: Convert to fraction form
    12,317.54/18,477.05 = 8,367.12/x
  3. Step 3: Cross multiply
    12,317.54x = 18,477.05 × 8,367.12
  4. Step 4: Simplify right side
    12,317.54x = 154,599,652.76
  5. Step 5: Solve for x
    x = 154,599,652.76/12,317.54
  6. Step 6: Final answer
    x = 12,551.18

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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.