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Finding the Fourth Proportional to 14,998.06, 20,699.86 and 8,714.08

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Solution

The fourth proportional to 14,998.06, 20,699.86 and 8,714.08 is: 12,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,998.06 : 20,699.86 = 8,714.08 : x
  2. Step 2: Convert to fraction form
    14,998.06/20,699.86 = 8,714.08/x
  3. Step 3: Cross multiply
    14,998.06x = 20,699.86 × 8,714.08
  4. Step 4: Simplify right side
    14,998.06x = 180,380,236.03
  5. Step 5: Solve for x
    x = 180,380,236.03/14,998.06
  6. Step 6: Final answer
    x = 12,026.90

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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.