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Finding the Fourth Proportional to 64,797.96, 89,421.12 and 36,503.04

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Solution

The fourth proportional to 64,797.96, 89,421.12 and 36,503.04 is: 50,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,797.96 : 89,421.12 = 36,503.04 : x
  2. Step 2: Convert to fraction form
    64,797.96/89,421.12 = 36,503.04/x
  3. Step 3: Cross multiply
    64,797.96x = 89,421.12 × 36,503.04
  4. Step 4: Simplify right side
    64,797.96x = 3,264,142,720.20
  5. Step 5: Solve for x
    x = 3,264,142,720.20/64,797.96
  6. Step 6: Final answer
    x = 50,374.16

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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.