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Finding the Fourth Proportional to 61,908.48, 85,434.48 and 33,614.64

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Solution

The fourth proportional to 61,908.48, 85,434.48 and 33,614.64 is: 46,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,908.48 : 85,434.48 = 33,614.64 : x
  2. Step 2: Convert to fraction form
    61,908.48/85,434.48 = 33,614.64/x
  3. Step 3: Cross multiply
    61,908.48x = 85,434.48 × 33,614.64
  4. Step 4: Simplify right side
    61,908.48x = 2,871,849,288.79
  5. Step 5: Solve for x
    x = 2,871,849,288.79/61,908.48
  6. Step 6: Final answer
    x = 46,388.63

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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.