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Finding the Fourth Proportional to 64,530.60, 96,719.10 and 27,090.60

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Solution

The fourth proportional to 64,530.60, 96,719.10 and 27,090.60 is: 40,603.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,530.60 : 96,719.10 = 27,090.60 : x
  2. Step 2: Convert to fraction form
    64,530.60/96,719.10 = 27,090.60/x
  3. Step 3: Cross multiply
    64,530.60x = 96,719.10 × 27,090.60
  4. Step 4: Simplify right side
    64,530.60x = 2,620,178,450.46
  5. Step 5: Solve for x
    x = 2,620,178,450.46/64,530.60
  6. Step 6: Final answer
    x = 40,603.66

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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.