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Finding the Fourth Proportional to 61,903.83, 85,429.04 and 36,412.05

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Solution

The fourth proportional to 61,903.83, 85,429.04 and 36,412.05 is: 50,249.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,903.83 : 85,429.04 = 36,412.05 : x
  2. Step 2: Convert to fraction form
    61,903.83/85,429.04 = 36,412.05/x
  3. Step 3: Cross multiply
    61,903.83x = 85,429.04 × 36,412.05
  4. Step 4: Simplify right side
    61,903.83x = 3,110,646,293.87
  5. Step 5: Solve for x
    x = 3,110,646,293.87/61,903.83
  6. Step 6: Final answer
    x = 50,249.66

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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.