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Finding the Fourth Proportional to 55,798.94, 77,015.81 and 31,939.38

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Solution

The fourth proportional to 55,798.94, 77,015.81 and 31,939.38 is: 44,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,798.94 : 77,015.81 = 31,939.38 : x
  2. Step 2: Convert to fraction form
    55,798.94/77,015.81 = 31,939.38/x
  3. Step 3: Cross multiply
    55,798.94x = 77,015.81 × 31,939.38
  4. Step 4: Simplify right side
    55,798.94x = 2,459,837,301.45
  5. Step 5: Solve for x
    x = 2,459,837,301.45/55,798.94
  6. Step 6: Final answer
    x = 44,083.94

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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.