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Finding the Fourth Proportional to 64,496.88, 89,004.40 and 35,815.04

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Solution

The fourth proportional to 64,496.88, 89,004.40 and 35,815.04 is: 49,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,496.88 : 89,004.40 = 35,815.04 : x
  2. Step 2: Convert to fraction form
    64,496.88/89,004.40 = 35,815.04/x
  3. Step 3: Cross multiply
    64,496.88x = 89,004.40 × 35,815.04
  4. Step 4: Simplify right side
    64,496.88x = 3,187,696,146.18
  5. Step 5: Solve for x
    x = 3,187,696,146.18/64,496.88
  6. Step 6: Final answer
    x = 49,424.04

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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.