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Finding the Fourth Proportional to 52,610.67, 78,916.00 and 19,316.32

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Solution

The fourth proportional to 52,610.67, 78,916.00 and 19,316.32 is: 28,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,610.67 : 78,916.00 = 19,316.32 : x
  2. Step 2: Convert to fraction form
    52,610.67/78,916.00 = 19,316.32/x
  3. Step 3: Cross multiply
    52,610.67x = 78,916.00 × 19,316.32
  4. Step 4: Simplify right side
    52,610.67x = 1,524,366,612.54
  5. Step 5: Solve for x
    x = 1,524,366,612.54/52,610.67
  6. Step 6: Final answer
    x = 28,974.48

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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.