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Finding the Fourth Proportional to 66,726.72, 100,025.28 and 37,117.44

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Solution

The fourth proportional to 66,726.72, 100,025.28 and 37,117.44 is: 55,640.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,726.72 : 100,025.28 = 37,117.44 : x
  2. Step 2: Convert to fraction form
    66,726.72/100,025.28 = 37,117.44/x
  3. Step 3: Cross multiply
    66,726.72x = 100,025.28 × 37,117.44
  4. Step 4: Simplify right side
    66,726.72x = 3,712,682,328.88
  5. Step 5: Solve for x
    x = 3,712,682,328.88/66,726.72
  6. Step 6: Final answer
    x = 55,640.11

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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.