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Finding the Fourth Proportional to 64,690.01, 89,264.43 and 36,002.49

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Solution

The fourth proportional to 64,690.01, 89,264.43 and 36,002.49 is: 49,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,690.01 : 89,264.43 = 36,002.49 : x
  2. Step 2: Convert to fraction form
    64,690.01/89,264.43 = 36,002.49/x
  3. Step 3: Cross multiply
    64,690.01x = 89,264.43 × 36,002.49
  4. Step 4: Simplify right side
    64,690.01x = 3,213,741,748.43
  5. Step 5: Solve for x
    x = 3,213,741,748.43/64,690.01
  6. Step 6: Final answer
    x = 49,679.11

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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.