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Finding the Fourth Proportional to 64,349.87, 96,485.78 and 28,804.64

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Solution

The fourth proportional to 64,349.87, 96,485.78 and 28,804.64 is: 43,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,349.87 : 96,485.78 = 28,804.64 : x
  2. Step 2: Convert to fraction form
    64,349.87/96,485.78 = 28,804.64/x
  3. Step 3: Cross multiply
    64,349.87x = 96,485.78 × 28,804.64
  4. Step 4: Simplify right side
    64,349.87x = 2,779,237,747.60
  5. Step 5: Solve for x
    x = 2,779,237,747.60/64,349.87
  6. Step 6: Final answer
    x = 43,189.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.