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Finding the Fourth Proportional to 14,487.08, 19,992.26 and 7,863.08

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Solution

The fourth proportional to 14,487.08, 19,992.26 and 7,863.08 is: 10,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.08 : 19,992.26 = 7,863.08 : x
  2. Step 2: Convert to fraction form
    14,487.08/19,992.26 = 7,863.08/x
  3. Step 3: Cross multiply
    14,487.08x = 19,992.26 × 7,863.08
  4. Step 4: Simplify right side
    14,487.08x = 157,200,739.76
  5. Step 5: Solve for x
    x = 157,200,739.76/14,487.08
  6. Step 6: Final answer
    x = 10,851.10

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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.