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Finding the Fourth Proportional to 64,911.03, 89,577.90 and 36,233.40

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Solution

The fourth proportional to 64,911.03, 89,577.90 and 36,233.40 is: 50,002.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,911.03 : 89,577.90 = 36,233.40 : x
  2. Step 2: Convert to fraction form
    64,911.03/89,577.90 = 36,233.40/x
  3. Step 3: Cross multiply
    64,911.03x = 89,577.90 × 36,233.40
  4. Step 4: Simplify right side
    64,911.03x = 3,245,711,881.86
  5. Step 5: Solve for x
    x = 3,245,711,881.86/64,911.03
  6. Step 6: Final answer
    x = 50,002.47

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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.