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Finding the Fourth Proportional to 32,389.91, 48,475.04 and 19,917.77

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Solution

The fourth proportional to 32,389.91, 48,475.04 and 19,917.77 is: 29,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,389.91 : 48,475.04 = 19,917.77 : x
  2. Step 2: Convert to fraction form
    32,389.91/48,475.04 = 19,917.77/x
  3. Step 3: Cross multiply
    32,389.91x = 48,475.04 × 19,917.77
  4. Step 4: Simplify right side
    32,389.91x = 965,514,355.50
  5. Step 5: Solve for x
    x = 965,514,355.50/32,389.91
  6. Step 6: Final answer
    x = 29,809.11

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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.