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Finding the Fourth Proportional to 32,408.64, 44,720.64 and 18,792

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Solution

The fourth proportional to 32,408.64, 44,720.64 and 18,792 is: 25,931.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,408.64 : 44,720.64 = 18,792 : x
  2. Step 2: Convert to fraction form
    32,408.64/44,720.64 = 18,792/x
  3. Step 3: Cross multiply
    32,408.64x = 44,720.64 × 18,792
  4. Step 4: Simplify right side
    32,408.64x = 840,390,266.88
  5. Step 5: Solve for x
    x = 840,390,266.88/32,408.64
  6. Step 6: Final answer
    x = 25,931.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.