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Finding the Fourth Proportional to 64,812.52, 89,440.50 and 36,523

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Solution

The fourth proportional to 64,812.52, 89,440.50 and 36,523 is: 50,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,812.52 : 89,440.50 = 36,523 : x
  2. Step 2: Convert to fraction form
    64,812.52/89,440.50 = 36,523/x
  3. Step 3: Cross multiply
    64,812.52x = 89,440.50 × 36,523
  4. Step 4: Simplify right side
    64,812.52x = 3,266,635,381.50
  5. Step 5: Solve for x
    x = 3,266,635,381.50/64,812.52
  6. Step 6: Final answer
    x = 50,401.30

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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.