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Finding the Fourth Proportional to 64,996.65, 89,737.07 and 53,088.57

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Solution

The fourth proportional to 64,996.65, 89,737.07 and 53,088.57 is: 73,296.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,996.65 : 89,737.07 = 53,088.57 : x
  2. Step 2: Convert to fraction form
    64,996.65/89,737.07 = 53,088.57/x
  3. Step 3: Cross multiply
    64,996.65x = 89,737.07 × 53,088.57
  4. Step 4: Simplify right side
    64,996.65x = 4,764,012,456.85
  5. Step 5: Solve for x
    x = 4,764,012,456.85/64,996.65
  6. Step 6: Final answer
    x = 73,296.28

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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.