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Finding the Fourth Proportional to 14,672.10, 21,970.58 and 8,090.99

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Solution

The fourth proportional to 14,672.10, 21,970.58 and 8,090.99 is: 12,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,672.10 : 21,970.58 = 8,090.99 : x
  2. Step 2: Convert to fraction form
    14,672.10/21,970.58 = 8,090.99/x
  3. Step 3: Cross multiply
    14,672.10x = 21,970.58 × 8,090.99
  4. Step 4: Simplify right side
    14,672.10x = 177,763,592.77
  5. Step 5: Solve for x
    x = 177,763,592.77/14,672.10
  6. Step 6: Final answer
    x = 12,115.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.