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Finding the Fourth Proportional to 84,598.98, 126,884.70 and 31,995.96

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Solution

The fourth proportional to 84,598.98, 126,884.70 and 31,995.96 is: 47,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,598.98 : 126,884.70 = 31,995.96 : x
  2. Step 2: Convert to fraction form
    84,598.98/126,884.70 = 31,995.96/x
  3. Step 3: Cross multiply
    84,598.98x = 126,884.70 × 31,995.96
  4. Step 4: Simplify right side
    84,598.98x = 4,059,797,785.81
  5. Step 5: Solve for x
    x = 4,059,797,785.81/84,598.98
  6. Step 6: Final answer
    x = 47,988.73

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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.