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Finding the Fourth Proportional to 64,488.18, 88,992.44 and 35,806.36

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Solution

The fourth proportional to 64,488.18, 88,992.44 and 35,806.36 is: 49,412.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,488.18 : 88,992.44 = 35,806.36 : x
  2. Step 2: Convert to fraction form
    64,488.18/88,992.44 = 35,806.36/x
  3. Step 3: Cross multiply
    64,488.18x = 88,992.44 × 35,806.36
  4. Step 4: Simplify right side
    64,488.18x = 3,186,494,942.41
  5. Step 5: Solve for x
    x = 3,186,494,942.41/64,488.18
  6. Step 6: Final answer
    x = 49,412.08

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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.