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Finding the Fourth Proportional to 64,816.80, 97,176.48 and 27,420.64

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Solution

The fourth proportional to 64,816.80, 97,176.48 and 27,420.64 is: 41,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,816.80 : 97,176.48 = 27,420.64 : x
  2. Step 2: Convert to fraction form
    64,816.80/97,176.48 = 27,420.64/x
  3. Step 3: Cross multiply
    64,816.80x = 97,176.48 × 27,420.64
  4. Step 4: Simplify right side
    64,816.80x = 2,664,641,274.55
  5. Step 5: Solve for x
    x = 2,664,641,274.55/64,816.80
  6. Step 6: Final answer
    x = 41,110.35

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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.