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Finding the Fourth Proportional to 30,626.66, 45,878.48 and 13,963.77

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Solution

The fourth proportional to 30,626.66, 45,878.48 and 13,963.77 is: 20,917.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,626.66 : 45,878.48 = 13,963.77 : x
  2. Step 2: Convert to fraction form
    30,626.66/45,878.48 = 13,963.77/x
  3. Step 3: Cross multiply
    30,626.66x = 45,878.48 × 13,963.77
  4. Step 4: Simplify right side
    30,626.66x = 640,636,706.61
  5. Step 5: Solve for x
    x = 640,636,706.61/30,626.66
  6. Step 6: Final answer
    x = 20,917.61

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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.