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Finding the Fourth Proportional to 39,890.51, 59,879.51 and 16,533.35

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Solution

The fourth proportional to 39,890.51, 59,879.51 and 16,533.35 is: 24,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,890.51 : 59,879.51 = 16,533.35 : x
  2. Step 2: Convert to fraction form
    39,890.51/59,879.51 = 16,533.35/x
  3. Step 3: Cross multiply
    39,890.51x = 59,879.51 × 16,533.35
  4. Step 4: Simplify right side
    39,890.51x = 990,008,638.59
  5. Step 5: Solve for x
    x = 990,008,638.59/39,890.51
  6. Step 6: Final answer
    x = 24,818.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.