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Finding the Fourth Proportional to 56,657.80, 84,986.70 and 27,133.30

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Solution

The fourth proportional to 56,657.80, 84,986.70 and 27,133.30 is: 40,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,657.80 : 84,986.70 = 27,133.30 : x
  2. Step 2: Convert to fraction form
    56,657.80/84,986.70 = 27,133.30/x
  3. Step 3: Cross multiply
    56,657.80x = 84,986.70 × 27,133.30
  4. Step 4: Simplify right side
    56,657.80x = 2,305,969,627.11
  5. Step 5: Solve for x
    x = 2,305,969,627.11/56,657.80
  6. Step 6: Final answer
    x = 40,699.95

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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.