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Finding the Fourth Proportional to 25,796.72, 38,697.24 and 11,938.16

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Solution

The fourth proportional to 25,796.72, 38,697.24 and 11,938.16 is: 17,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,796.72 : 38,697.24 = 11,938.16 : x
  2. Step 2: Convert to fraction form
    25,796.72/38,697.24 = 11,938.16/x
  3. Step 3: Cross multiply
    25,796.72x = 38,697.24 × 11,938.16
  4. Step 4: Simplify right side
    25,796.72x = 461,973,842.68
  5. Step 5: Solve for x
    x = 461,973,842.68/25,796.72
  6. Step 6: Final answer
    x = 17,908.24

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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.