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Finding the Fourth Proportional to 39,956.40, 59,956.20 and 17,773.20

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Solution

The fourth proportional to 39,956.40, 59,956.20 and 17,773.20 is: 26,669.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,956.40 : 59,956.20 = 17,773.20 : x
  2. Step 2: Convert to fraction form
    39,956.40/59,956.20 = 17,773.20/x
  3. Step 3: Cross multiply
    39,956.40x = 59,956.20 × 17,773.20
  4. Step 4: Simplify right side
    39,956.40x = 1,065,613,533.84
  5. Step 5: Solve for x
    x = 1,065,613,533.84/39,956.40
  6. Step 6: Final answer
    x = 26,669.41

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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.