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Finding the Fourth Proportional to 15,682.60, 23,523.90 and 13,090.60

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Solution

The fourth proportional to 15,682.60, 23,523.90 and 13,090.60 is: 19,635.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.60 : 23,523.90 = 13,090.60 : x
  2. Step 2: Convert to fraction form
    15,682.60/23,523.90 = 13,090.60/x
  3. Step 3: Cross multiply
    15,682.60x = 23,523.90 × 13,090.60
  4. Step 4: Simplify right side
    15,682.60x = 307,941,965.34
  5. Step 5: Solve for x
    x = 307,941,965.34/15,682.60
  6. Step 6: Final answer
    x = 19,635.90

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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.