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Finding the Fourth Proportional to 14,808.66, 20,436.31 and 8,094.57

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Solution

The fourth proportional to 14,808.66, 20,436.31 and 8,094.57 is: 11,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,808.66 : 20,436.31 = 8,094.57 : x
  2. Step 2: Convert to fraction form
    14,808.66/20,436.31 = 8,094.57/x
  3. Step 3: Cross multiply
    14,808.66x = 20,436.31 × 8,094.57
  4. Step 4: Simplify right side
    14,808.66x = 165,423,141.84
  5. Step 5: Solve for x
    x = 165,423,141.84/14,808.66
  6. Step 6: Final answer
    x = 11,170.70

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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.