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Finding the Fourth Proportional to 65,903.77, 98,865.56 and 19,150.57

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Solution

The fourth proportional to 65,903.77, 98,865.56 and 19,150.57 is: 28,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,903.77 : 98,865.56 = 19,150.57 : x
  2. Step 2: Convert to fraction form
    65,903.77/98,865.56 = 19,150.57/x
  3. Step 3: Cross multiply
    65,903.77x = 98,865.56 × 19,150.57
  4. Step 4: Simplify right side
    65,903.77x = 1,893,331,827.37
  5. Step 5: Solve for x
    x = 1,893,331,827.37/65,903.77
  6. Step 6: Final answer
    x = 28,728.73

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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.