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Finding the Fourth Proportional to 39,950, 59,621.22 and 35,521.48

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Solution

The fourth proportional to 39,950, 59,621.22 and 35,521.48 is: 53,012.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,950 : 59,621.22 = 35,521.48 : x
  2. Step 2: Convert to fraction form
    39,950/59,621.22 = 35,521.48/x
  3. Step 3: Cross multiply
    39,950x = 59,621.22 × 35,521.48
  4. Step 4: Simplify right side
    39,950x = 2,117,833,973.81
  5. Step 5: Solve for x
    x = 2,117,833,973.81/39,950
  6. Step 6: Final answer
    x = 53,012.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.