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Finding the Fourth Proportional to 17,511.20, 23,686.20 and 17,511.20

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Solution

The fourth proportional to 17,511.20, 23,686.20 and 17,511.20 is: 23,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,511.20 : 23,686.20 = 17,511.20 : x
  2. Step 2: Convert to fraction form
    17,511.20/23,686.20 = 17,511.20/x
  3. Step 3: Cross multiply
    17,511.20x = 23,686.20 × 17,511.20
  4. Step 4: Simplify right side
    17,511.20x = 414,773,785.44
  5. Step 5: Solve for x
    x = 414,773,785.44/17,511.20
  6. Step 6: Final answer
    x = 23,686.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.