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Finding the Fourth Proportional to 66,524.38, 99,733.56 and 38,412.54

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Solution

The fourth proportional to 66,524.38, 99,733.56 and 38,412.54 is: 57,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,524.38 : 99,733.56 = 38,412.54 : x
  2. Step 2: Convert to fraction form
    66,524.38/99,733.56 = 38,412.54/x
  3. Step 3: Cross multiply
    66,524.38x = 99,733.56 × 38,412.54
  4. Step 4: Simplify right side
    66,524.38x = 3,831,019,362.84
  5. Step 5: Solve for x
    x = 3,831,019,362.84/66,524.38
  6. Step 6: Final answer
    x = 57,588.20

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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.