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Finding the Fourth Proportional to 68,220.63, 94,152.65 and 39,926.25

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Solution

The fourth proportional to 68,220.63, 94,152.65 and 39,926.25 is: 55,103.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,220.63 : 94,152.65 = 39,926.25 : x
  2. Step 2: Convert to fraction form
    68,220.63/94,152.65 = 39,926.25/x
  3. Step 3: Cross multiply
    68,220.63x = 94,152.65 × 39,926.25
  4. Step 4: Simplify right side
    68,220.63x = 3,759,162,042.43
  5. Step 5: Solve for x
    x = 3,759,162,042.43/68,220.63
  6. Step 6: Final answer
    x = 55,103.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.