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Finding the Fourth Proportional to 66,808.28, 100,212.35 and 27,365.46

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Solution

The fourth proportional to 66,808.28, 100,212.35 and 27,365.46 is: 41,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808.28 : 100,212.35 = 27,365.46 : x
  2. Step 2: Convert to fraction form
    66,808.28/100,212.35 = 27,365.46/x
  3. Step 3: Cross multiply
    66,808.28x = 100,212.35 × 27,365.46
  4. Step 4: Simplify right side
    66,808.28x = 2,742,356,918.60
  5. Step 5: Solve for x
    x = 2,742,356,918.60/66,808.28
  6. Step 6: Final answer
    x = 41,048.16

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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.