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Finding the Fourth Proportional to 14,504.94, 20,026.44 and 12,930.30

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Solution

The fourth proportional to 14,504.94, 20,026.44 and 12,930.30 is: 17,852.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,504.94 : 20,026.44 = 12,930.30 : x
  2. Step 2: Convert to fraction form
    14,504.94/20,026.44 = 12,930.30/x
  3. Step 3: Cross multiply
    14,504.94x = 20,026.44 × 12,930.30
  4. Step 4: Simplify right side
    14,504.94x = 258,947,877.13
  5. Step 5: Solve for x
    x = 258,947,877.13/14,504.94
  6. Step 6: Final answer
    x = 17,852.39

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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.