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Finding the Fourth Proportional to 55,364.44, 83,044.50 and 15,921.40

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Solution

The fourth proportional to 55,364.44, 83,044.50 and 15,921.40 is: 23,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,364.44 : 83,044.50 = 15,921.40 : x
  2. Step 2: Convert to fraction form
    55,364.44/83,044.50 = 15,921.40/x
  3. Step 3: Cross multiply
    55,364.44x = 83,044.50 × 15,921.40
  4. Step 4: Simplify right side
    55,364.44x = 1,322,184,702.30
  5. Step 5: Solve for x
    x = 1,322,184,702.30/55,364.44
  6. Step 6: Final answer
    x = 23,881.48

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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.