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Finding the Fourth Proportional to 12,997.06, 17,935.93 and 7,028.67

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Solution

The fourth proportional to 12,997.06, 17,935.93 and 7,028.67 is: 9,699.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.06 : 17,935.93 = 7,028.67 : x
  2. Step 2: Convert to fraction form
    12,997.06/17,935.93 = 7,028.67/x
  3. Step 3: Cross multiply
    12,997.06x = 17,935.93 × 7,028.67
  4. Step 4: Simplify right side
    12,997.06x = 126,065,733.11
  5. Step 5: Solve for x
    x = 126,065,733.11/12,997.06
  6. Step 6: Final answer
    x = 9,699.56

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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.