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Finding the Fourth Proportional to 17,641.99, 26,438.28 and 13,256.65

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Solution

The fourth proportional to 17,641.99, 26,438.28 and 13,256.65 is: 19,866.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,641.99 : 26,438.28 = 13,256.65 : x
  2. Step 2: Convert to fraction form
    17,641.99/26,438.28 = 13,256.65/x
  3. Step 3: Cross multiply
    17,641.99x = 26,438.28 × 13,256.65
  4. Step 4: Simplify right side
    17,641.99x = 350,483,024.56
  5. Step 5: Solve for x
    x = 350,483,024.56/17,641.99
  6. Step 6: Final answer
    x = 19,866.41

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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.