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Finding the Fourth Proportional to 17,889.53, 26,852.92 and 13,214.81

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Solution

The fourth proportional to 17,889.53, 26,852.92 and 13,214.81 is: 19,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.53 : 26,852.92 = 13,214.81 : x
  2. Step 2: Convert to fraction form
    17,889.53/26,852.92 = 13,214.81/x
  3. Step 3: Cross multiply
    17,889.53x = 26,852.92 × 13,214.81
  4. Step 4: Simplify right side
    17,889.53x = 354,856,269.84
  5. Step 5: Solve for x
    x = 354,856,269.84/17,889.53
  6. Step 6: Final answer
    x = 19,835.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.