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Finding the Fourth Proportional to 35,467.81, 48,950.01 and 20,365.20

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Solution

The fourth proportional to 35,467.81, 48,950.01 and 20,365.20 is: 28,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,467.81 : 48,950.01 = 20,365.20 : x
  2. Step 2: Convert to fraction form
    35,467.81/48,950.01 = 20,365.20/x
  3. Step 3: Cross multiply
    35,467.81x = 48,950.01 × 20,365.20
  4. Step 4: Simplify right side
    35,467.81x = 996,876,743.65
  5. Step 5: Solve for x
    x = 996,876,743.65/35,467.81
  6. Step 6: Final answer
    x = 28,106.52

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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.