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Finding the Fourth Proportional to 12,370.82, 17,074.01 and 7,065.63

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Solution

The fourth proportional to 12,370.82, 17,074.01 and 7,065.63 is: 9,751.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.82 : 17,074.01 = 7,065.63 : x
  2. Step 2: Convert to fraction form
    12,370.82/17,074.01 = 7,065.63/x
  3. Step 3: Cross multiply
    12,370.82x = 17,074.01 × 7,065.63
  4. Step 4: Simplify right side
    12,370.82x = 120,638,628.44
  5. Step 5: Solve for x
    x = 120,638,628.44/12,370.82
  6. Step 6: Final answer
    x = 9,751.87

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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.