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Finding the Fourth Proportional to 51,369.48, 70,879.86 and 29,009.16

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Solution

The fourth proportional to 51,369.48, 70,879.86 and 29,009.16 is: 40,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,369.48 : 70,879.86 = 29,009.16 : x
  2. Step 2: Convert to fraction form
    51,369.48/70,879.86 = 29,009.16/x
  3. Step 3: Cross multiply
    51,369.48x = 70,879.86 × 29,009.16
  4. Step 4: Simplify right side
    51,369.48x = 2,056,165,199.52
  5. Step 5: Solve for x
    x = 2,056,165,199.52/51,369.48
  6. Step 6: Final answer
    x = 40,026.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.