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Finding the Fourth Proportional to 67,012.15, 100,511.03 and 17,764.15

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Solution

The fourth proportional to 67,012.15, 100,511.03 and 17,764.15 is: 26,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,012.15 : 100,511.03 = 17,764.15 : x
  2. Step 2: Convert to fraction form
    67,012.15/100,511.03 = 17,764.15/x
  3. Step 3: Cross multiply
    67,012.15x = 100,511.03 × 17,764.15
  4. Step 4: Simplify right side
    67,012.15x = 1,785,492,924.75
  5. Step 5: Solve for x
    x = 1,785,492,924.75/67,012.15
  6. Step 6: Final answer
    x = 26,644.32

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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.