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Finding the Fourth Proportional to 63,151.81, 87,149.51 and 34,857.51

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Solution

The fourth proportional to 63,151.81, 87,149.51 and 34,857.51 is: 48,103.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,151.81 : 87,149.51 = 34,857.51 : x
  2. Step 2: Convert to fraction form
    63,151.81/87,149.51 = 34,857.51/x
  3. Step 3: Cross multiply
    63,151.81x = 87,149.51 × 34,857.51
  4. Step 4: Simplify right side
    63,151.81x = 3,037,814,654.87
  5. Step 5: Solve for x
    x = 3,037,814,654.87/63,151.81
  6. Step 6: Final answer
    x = 48,103.36

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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.