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Finding the Fourth Proportional to 15,999.28, 23,998.06 and 4,906

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Solution

The fourth proportional to 15,999.28, 23,998.06 and 4,906 is: 7,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.28 : 23,998.06 = 4,906 : x
  2. Step 2: Convert to fraction form
    15,999.28/23,998.06 = 4,906/x
  3. Step 3: Cross multiply
    15,999.28x = 23,998.06 × 4,906
  4. Step 4: Simplify right side
    15,999.28x = 117,734,482.36
  5. Step 5: Solve for x
    x = 117,734,482.36/15,999.28
  6. Step 6: Final answer
    x = 7,358.74

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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.