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Finding the Fourth Proportional to 11,641.78, 17,373.23 and 10,396.18

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Solution

The fourth proportional to 11,641.78, 17,373.23 and 10,396.18 is: 15,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.78 : 17,373.23 = 10,396.18 : x
  2. Step 2: Convert to fraction form
    11,641.78/17,373.23 = 10,396.18/x
  3. Step 3: Cross multiply
    11,641.78x = 17,373.23 × 10,396.18
  4. Step 4: Simplify right side
    11,641.78x = 180,615,226.26
  5. Step 5: Solve for x
    x = 180,615,226.26/11,641.78
  6. Step 6: Final answer
    x = 15,514.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.