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Finding the Fourth Proportional to 34,740.80, 52,072.80 and 19,169.60

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Solution

The fourth proportional to 34,740.80, 52,072.80 and 19,169.60 is: 28,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,740.80 : 52,072.80 = 19,169.60 : x
  2. Step 2: Convert to fraction form
    34,740.80/52,072.80 = 19,169.60/x
  3. Step 3: Cross multiply
    34,740.80x = 52,072.80 × 19,169.60
  4. Step 4: Simplify right side
    34,740.80x = 998,214,746.88
  5. Step 5: Solve for x
    x = 998,214,746.88/34,740.80
  6. Step 6: Final answer
    x = 28,733.21

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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.