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Finding the Fourth Proportional to 18,124.96, 25,012.80 and 10,168

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Solution

The fourth proportional to 18,124.96, 25,012.80 and 10,168 is: 14,032.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.96 : 25,012.80 = 10,168 : x
  2. Step 2: Convert to fraction form
    18,124.96/25,012.80 = 10,168/x
  3. Step 3: Cross multiply
    18,124.96x = 25,012.80 × 10,168
  4. Step 4: Simplify right side
    18,124.96x = 254,330,150.40
  5. Step 5: Solve for x
    x = 254,330,150.40/18,124.96
  6. Step 6: Final answer
    x = 14,032.04

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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.