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Finding the Fourth Proportional to 17,636.64, 26,318.64 and 15,673.20

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Solution

The fourth proportional to 17,636.64, 26,318.64 and 15,673.20 is: 23,388.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,636.64 : 26,318.64 = 15,673.20 : x
  2. Step 2: Convert to fraction form
    17,636.64/26,318.64 = 15,673.20/x
  3. Step 3: Cross multiply
    17,636.64x = 26,318.64 × 15,673.20
  4. Step 4: Simplify right side
    17,636.64x = 412,497,308.45
  5. Step 5: Solve for x
    x = 412,497,308.45/17,636.64
  6. Step 6: Final answer
    x = 23,388.66

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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.