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Finding the Fourth Proportional to 45,233.80, 67,850.70 and 28,612.60

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Solution

The fourth proportional to 45,233.80, 67,850.70 and 28,612.60 is: 42,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,233.80 : 67,850.70 = 28,612.60 : x
  2. Step 2: Convert to fraction form
    45,233.80/67,850.70 = 28,612.60/x
  3. Step 3: Cross multiply
    45,233.80x = 67,850.70 × 28,612.60
  4. Step 4: Simplify right side
    45,233.80x = 1,941,384,938.82
  5. Step 5: Solve for x
    x = 1,941,384,938.82/45,233.80
  6. Step 6: Final answer
    x = 42,918.90

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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.