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Finding the Fourth Proportional to 12,731.93, 17,570.24 and 7,695.25

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Solution

The fourth proportional to 12,731.93, 17,570.24 and 7,695.25 is: 10,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.93 : 17,570.24 = 7,695.25 : x
  2. Step 2: Convert to fraction form
    12,731.93/17,570.24 = 7,695.25/x
  3. Step 3: Cross multiply
    12,731.93x = 17,570.24 × 7,695.25
  4. Step 4: Simplify right side
    12,731.93x = 135,207,364.67
  5. Step 5: Solve for x
    x = 135,207,364.67/12,731.93
  6. Step 6: Final answer
    x = 10,619.55

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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.