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Finding the Fourth Proportional to 12,596.60, 18,989.25 and 11,750.84

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Solution

The fourth proportional to 12,596.60, 18,989.25 and 11,750.84 is: 17,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,596.60 : 18,989.25 = 11,750.84 : x
  2. Step 2: Convert to fraction form
    12,596.60/18,989.25 = 11,750.84/x
  3. Step 3: Cross multiply
    12,596.60x = 18,989.25 × 11,750.84
  4. Step 4: Simplify right side
    12,596.60x = 223,139,638.47
  5. Step 5: Solve for x
    x = 223,139,638.47/12,596.60
  6. Step 6: Final answer
    x = 17,714.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.