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Finding the Fourth Proportional to 64,751.58, 89,358.93 and 36,458.28

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Solution

The fourth proportional to 64,751.58, 89,358.93 and 36,458.28 is: 50,313.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,751.58 : 89,358.93 = 36,458.28 : x
  2. Step 2: Convert to fraction form
    64,751.58/89,358.93 = 36,458.28/x
  3. Step 3: Cross multiply
    64,751.58x = 89,358.93 × 36,458.28
  4. Step 4: Simplify right side
    64,751.58x = 3,257,872,890.44
  5. Step 5: Solve for x
    x = 3,257,872,890.44/64,751.58
  6. Step 6: Final answer
    x = 50,313.41

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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.