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Finding the Fourth Proportional to 17,992.51, 24,839.70 and 12,631.40

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Solution

The fourth proportional to 17,992.51, 24,839.70 and 12,631.40 is: 17,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992.51 : 24,839.70 = 12,631.40 : x
  2. Step 2: Convert to fraction form
    17,992.51/24,839.70 = 12,631.40/x
  3. Step 3: Cross multiply
    17,992.51x = 24,839.70 × 12,631.40
  4. Step 4: Simplify right side
    17,992.51x = 313,759,999.22
  5. Step 5: Solve for x
    x = 313,759,999.22/17,992.51
  6. Step 6: Final answer
    x = 17,438.37

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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.