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Finding the Fourth Proportional to 64,869.76, 89,520.29 and 36,575.45

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Solution

The fourth proportional to 64,869.76, 89,520.29 and 36,575.45 is: 50,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,869.76 : 89,520.29 = 36,575.45 : x
  2. Step 2: Convert to fraction form
    64,869.76/89,520.29 = 36,575.45/x
  3. Step 3: Cross multiply
    64,869.76x = 89,520.29 × 36,575.45
  4. Step 4: Simplify right side
    64,869.76x = 3,274,244,733.26
  5. Step 5: Solve for x
    x = 3,274,244,733.26/64,869.76
  6. Step 6: Final answer
    x = 50,474.13

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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.