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Finding the Fourth Proportional to 34,187.67, 47,177.84 and 18,664.70

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Solution

The fourth proportional to 34,187.67, 47,177.84 and 18,664.70 is: 25,756.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,187.67 : 47,177.84 = 18,664.70 : x
  2. Step 2: Convert to fraction form
    34,187.67/47,177.84 = 18,664.70/x
  3. Step 3: Cross multiply
    34,187.67x = 47,177.84 × 18,664.70
  4. Step 4: Simplify right side
    34,187.67x = 880,560,041.02
  5. Step 5: Solve for x
    x = 880,560,041.02/34,187.67
  6. Step 6: Final answer
    x = 25,756.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.