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Finding the Fourth Proportional to 12,594.54, 18,894.54 and 4,161.39

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Solution

The fourth proportional to 12,594.54, 18,894.54 and 4,161.39 is: 6,242.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,594.54 : 18,894.54 = 4,161.39 : x
  2. Step 2: Convert to fraction form
    12,594.54/18,894.54 = 4,161.39/x
  3. Step 3: Cross multiply
    12,594.54x = 18,894.54 × 4,161.39
  4. Step 4: Simplify right side
    12,594.54x = 78,627,549.81
  5. Step 5: Solve for x
    x = 78,627,549.81/12,594.54
  6. Step 6: Final answer
    x = 6,242.99

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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.