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Finding the Fourth Proportional to 84,636.44, 126,933.76 and 34,730.72

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Solution

The fourth proportional to 84,636.44, 126,933.76 and 34,730.72 is: 52,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,636.44 : 126,933.76 = 34,730.72 : x
  2. Step 2: Convert to fraction form
    84,636.44/126,933.76 = 34,730.72/x
  3. Step 3: Cross multiply
    84,636.44x = 126,933.76 × 34,730.72
  4. Step 4: Simplify right side
    84,636.44x = 4,408,500,877.11
  5. Step 5: Solve for x
    x = 4,408,500,877.11/84,636.44
  6. Step 6: Final answer
    x = 52,087.50

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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.