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Finding the Fourth Proportional to 52,448.76, 78,656.13 and 17,379

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Solution

The fourth proportional to 52,448.76, 78,656.13 and 17,379 is: 26,062.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,448.76 : 78,656.13 = 17,379 : x
  2. Step 2: Convert to fraction form
    52,448.76/78,656.13 = 17,379/x
  3. Step 3: Cross multiply
    52,448.76x = 78,656.13 × 17,379
  4. Step 4: Simplify right side
    52,448.76x = 1,366,964,883.27
  5. Step 5: Solve for x
    x = 1,366,964,883.27/52,448.76
  6. Step 6: Final answer
    x = 26,062.86

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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.