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Finding the Fourth Proportional to 62,221.90, 85,866.15 and 36,728.30

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Solution

The fourth proportional to 62,221.90, 85,866.15 and 36,728.30 is: 50,685.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,221.90 : 85,866.15 = 36,728.30 : x
  2. Step 2: Convert to fraction form
    62,221.90/85,866.15 = 36,728.30/x
  3. Step 3: Cross multiply
    62,221.90x = 85,866.15 × 36,728.30
  4. Step 4: Simplify right side
    62,221.90x = 3,153,717,717.05
  5. Step 5: Solve for x
    x = 3,153,717,717.05/62,221.90
  6. Step 6: Final answer
    x = 50,685.01

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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.