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Finding the Fourth Proportional to 13,462.77, 18,579.36 and 7,494.31

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Solution

The fourth proportional to 13,462.77, 18,579.36 and 7,494.31 is: 10,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,462.77 : 18,579.36 = 7,494.31 : x
  2. Step 2: Convert to fraction form
    13,462.77/18,579.36 = 7,494.31/x
  3. Step 3: Cross multiply
    13,462.77x = 18,579.36 × 7,494.31
  4. Step 4: Simplify right side
    13,462.77x = 139,239,534.77
  5. Step 5: Solve for x
    x = 139,239,534.77/13,462.77
  6. Step 6: Final answer
    x = 10,342.56

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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.