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Finding the Fourth Proportional to 32,388.79, 48,473.45 and 19,916.71

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Solution

The fourth proportional to 32,388.79, 48,473.45 and 19,916.71 is: 29,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,388.79 : 48,473.45 = 19,916.71 : x
  2. Step 2: Convert to fraction form
    32,388.79/48,473.45 = 19,916.71/x
  3. Step 3: Cross multiply
    32,388.79x = 48,473.45 × 19,916.71
  4. Step 4: Simplify right side
    32,388.79x = 965,431,546.77
  5. Step 5: Solve for x
    x = 965,431,546.77/32,388.79
  6. Step 6: Final answer
    x = 29,807.59

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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.