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Finding the Fourth Proportional to 12,317.67, 16,999.07 and 7,012.37

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Solution

The fourth proportional to 12,317.67, 16,999.07 and 7,012.37 is: 9,677.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.67 : 16,999.07 = 7,012.37 : x
  2. Step 2: Convert to fraction form
    12,317.67/16,999.07 = 7,012.37/x
  3. Step 3: Cross multiply
    12,317.67x = 16,999.07 × 7,012.37
  4. Step 4: Simplify right side
    12,317.67x = 119,203,775.93
  5. Step 5: Solve for x
    x = 119,203,775.93/12,317.67
  6. Step 6: Final answer
    x = 9,677.46

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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.