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Finding the Fourth Proportional to 17,090.80, 25,636.20 and 14,466.40

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Solution

The fourth proportional to 17,090.80, 25,636.20 and 14,466.40 is: 21,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,090.80 : 25,636.20 = 14,466.40 : x
  2. Step 2: Convert to fraction form
    17,090.80/25,636.20 = 14,466.40/x
  3. Step 3: Cross multiply
    17,090.80x = 25,636.20 × 14,466.40
  4. Step 4: Simplify right side
    17,090.80x = 370,863,523.68
  5. Step 5: Solve for x
    x = 370,863,523.68/17,090.80
  6. Step 6: Final answer
    x = 21,699.60

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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.