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Finding the Fourth Proportional to 66,924.90, 100,361.76 and 22,539.72

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Solution

The fourth proportional to 66,924.90, 100,361.76 and 22,539.72 is: 33,800.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,924.90 : 100,361.76 = 22,539.72 : x
  2. Step 2: Convert to fraction form
    66,924.90/100,361.76 = 22,539.72/x
  3. Step 3: Cross multiply
    66,924.90x = 100,361.76 × 22,539.72
  4. Step 4: Simplify right side
    66,924.90x = 2,262,125,969.11
  5. Step 5: Solve for x
    x = 2,262,125,969.11/66,924.90
  6. Step 6: Final answer
    x = 33,800.96

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1.5x scale

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.