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Finding the Fourth Proportional to 53,242, 73,473.60 and 29,369.32

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Solution

The fourth proportional to 53,242, 73,473.60 and 29,369.32 is: 40,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,242 : 73,473.60 = 29,369.32 : x
  2. Step 2: Convert to fraction form
    53,242/73,473.60 = 29,369.32/x
  3. Step 3: Cross multiply
    53,242x = 73,473.60 × 29,369.32
  4. Step 4: Simplify right side
    53,242x = 2,157,869,669.95
  5. Step 5: Solve for x
    x = 2,157,869,669.95/53,242
  6. Step 6: Final answer
    x = 40,529.46

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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.