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Finding the Fourth Proportional to 64,478.53, 96,686.70 and 27,028.55

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Solution

The fourth proportional to 64,478.53, 96,686.70 and 27,028.55 is: 40,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,478.53 : 96,686.70 = 27,028.55 : x
  2. Step 2: Convert to fraction form
    64,478.53/96,686.70 = 27,028.55/x
  3. Step 3: Cross multiply
    64,478.53x = 96,686.70 × 27,028.55
  4. Step 4: Simplify right side
    64,478.53x = 2,613,301,445.64
  5. Step 5: Solve for x
    x = 2,613,301,445.64/64,478.53
  6. Step 6: Final answer
    x = 40,529.79

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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.