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Finding the Fourth Proportional to 17,640.07, 24,329.03 and 15,511.16

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Solution

The fourth proportional to 17,640.07, 24,329.03 and 15,511.16 is: 21,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.07 : 24,329.03 = 15,511.16 : x
  2. Step 2: Convert to fraction form
    17,640.07/24,329.03 = 15,511.16/x
  3. Step 3: Cross multiply
    17,640.07x = 24,329.03 × 15,511.16
  4. Step 4: Simplify right side
    17,640.07x = 377,371,460.24
  5. Step 5: Solve for x
    x = 377,371,460.24/17,640.07
  6. Step 6: Final answer
    x = 21,392.86

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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.