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Finding the Fourth Proportional to 14,179.70, 19,568.72 and 7,892.48

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Solution

The fourth proportional to 14,179.70, 19,568.72 and 7,892.48 is: 10,892.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.70 : 19,568.72 = 7,892.48 : x
  2. Step 2: Convert to fraction form
    14,179.70/19,568.72 = 7,892.48/x
  3. Step 3: Cross multiply
    14,179.70x = 19,568.72 × 7,892.48
  4. Step 4: Simplify right side
    14,179.70x = 154,445,731.23
  5. Step 5: Solve for x
    x = 154,445,731.23/14,179.70
  6. Step 6: Final answer
    x = 10,892.03

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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.