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Finding the Fourth Proportional to 17,672.13, 24,409.13 and 13,215.69

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Solution

The fourth proportional to 17,672.13, 24,409.13 and 13,215.69 is: 18,253.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,672.13 : 24,409.13 = 13,215.69 : x
  2. Step 2: Convert to fraction form
    17,672.13/24,409.13 = 13,215.69/x
  3. Step 3: Cross multiply
    17,672.13x = 24,409.13 × 13,215.69
  4. Step 4: Simplify right side
    17,672.13x = 322,583,429.17
  5. Step 5: Solve for x
    x = 322,583,429.17/17,672.13
  6. Step 6: Final answer
    x = 18,253.79

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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.