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Finding the Fourth Proportional to 14,804.15, 20,429.82 and 8,089.88

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Solution

The fourth proportional to 14,804.15, 20,429.82 and 8,089.88 is: 11,164.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,804.15 : 20,429.82 = 8,089.88 : x
  2. Step 2: Convert to fraction form
    14,804.15/20,429.82 = 8,089.88/x
  3. Step 3: Cross multiply
    14,804.15x = 20,429.82 × 8,089.88
  4. Step 4: Simplify right side
    14,804.15x = 165,274,690.07
  5. Step 5: Solve for x
    x = 165,274,690.07/14,804.15
  6. Step 6: Final answer
    x = 11,164.08

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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.