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Finding the Fourth Proportional to 14,665.19, 20,163.02 and 13,056.53

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Solution

The fourth proportional to 14,665.19, 20,163.02 and 13,056.53 is: 17,951.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.19 : 20,163.02 = 13,056.53 : x
  2. Step 2: Convert to fraction form
    14,665.19/20,163.02 = 13,056.53/x
  3. Step 3: Cross multiply
    14,665.19x = 20,163.02 × 13,056.53
  4. Step 4: Simplify right side
    14,665.19x = 263,258,974.71
  5. Step 5: Solve for x
    x = 263,258,974.71/14,665.19
  6. Step 6: Final answer
    x = 17,951.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.