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Finding the Fourth Proportional to 66,420.44, 99,652.53 and 26,966.96

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Solution

The fourth proportional to 66,420.44, 99,652.53 and 26,966.96 is: 40,459.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,420.44 : 99,652.53 = 26,966.96 : x
  2. Step 2: Convert to fraction form
    66,420.44/99,652.53 = 26,966.96/x
  3. Step 3: Cross multiply
    66,420.44x = 99,652.53 × 26,966.96
  4. Step 4: Simplify right side
    66,420.44x = 2,687,325,790.41
  5. Step 5: Solve for x
    x = 2,687,325,790.41/66,420.44
  6. Step 6: Final answer
    x = 40,459.32

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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.