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Finding the Fourth Proportional to 85,093.74, 127,698.93 and 29,689.74

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Solution

The fourth proportional to 85,093.74, 127,698.93 and 29,689.74 is: 44,554.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,093.74 : 127,698.93 = 29,689.74 : x
  2. Step 2: Convert to fraction form
    85,093.74/127,698.93 = 29,689.74/x
  3. Step 3: Cross multiply
    85,093.74x = 127,698.93 × 29,689.74
  4. Step 4: Simplify right side
    85,093.74x = 3,791,348,029.98
  5. Step 5: Solve for x
    x = 3,791,348,029.98/85,093.74
  6. Step 6: Final answer
    x = 44,554.96

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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.