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Finding the Fourth Proportional to 84,825.80, 127,311.60 and 37,513.70

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Solution

The fourth proportional to 84,825.80, 127,311.60 and 37,513.70 is: 56,302.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,825.80 : 127,311.60 = 37,513.70 : x
  2. Step 2: Convert to fraction form
    84,825.80/127,311.60 = 37,513.70/x
  3. Step 3: Cross multiply
    84,825.80x = 127,311.60 × 37,513.70
  4. Step 4: Simplify right side
    84,825.80x = 4,775,929,168.92
  5. Step 5: Solve for x
    x = 4,775,929,168.92/84,825.80
  6. Step 6: Final answer
    x = 56,302.79

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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.