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Finding the Fourth Proportional to 52,959.18, 79,431.71 and 19,674.71

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Solution

The fourth proportional to 52,959.18, 79,431.71 and 19,674.71 is: 29,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,959.18 : 79,431.71 = 19,674.71 : x
  2. Step 2: Convert to fraction form
    52,959.18/79,431.71 = 19,674.71/x
  3. Step 3: Cross multiply
    52,959.18x = 79,431.71 × 19,674.71
  4. Step 4: Simplify right side
    52,959.18x = 1,562,796,108.19
  5. Step 5: Solve for x
    x = 1,562,796,108.19/52,959.18
  6. Step 6: Final answer
    x = 29,509.44

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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.