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Finding the Fourth Proportional to 66,039.96, 99,059.60 and 16,120.32

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Solution

The fourth proportional to 66,039.96, 99,059.60 and 16,120.32 is: 24,180.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,039.96 : 99,059.60 = 16,120.32 : x
  2. Step 2: Convert to fraction form
    66,039.96/99,059.60 = 16,120.32/x
  3. Step 3: Cross multiply
    66,039.96x = 99,059.60 × 16,120.32
  4. Step 4: Simplify right side
    66,039.96x = 1,596,872,006.55
  5. Step 5: Solve for x
    x = 1,596,872,006.55/66,039.96
  6. Step 6: Final answer
    x = 24,180.39

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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.