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Finding the Fourth Proportional to 15,998.82, 23,998.78 and 4,312.32

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Solution

The fourth proportional to 15,998.82, 23,998.78 and 4,312.32 is: 6,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.82 : 23,998.78 = 4,312.32 : x
  2. Step 2: Convert to fraction form
    15,998.82/23,998.78 = 4,312.32/x
  3. Step 3: Cross multiply
    15,998.82x = 23,998.78 × 4,312.32
  4. Step 4: Simplify right side
    15,998.82x = 103,490,418.97
  5. Step 5: Solve for x
    x = 103,490,418.97/15,998.82
  6. Step 6: Final answer
    x = 6,468.63

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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.