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Finding the Fourth Proportional to 65,886.52, 90,923.46 and 35,671.87

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Solution

The fourth proportional to 65,886.52, 90,923.46 and 35,671.87 is: 49,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,886.52 : 90,923.46 = 35,671.87 : x
  2. Step 2: Convert to fraction form
    65,886.52/90,923.46 = 35,671.87/x
  3. Step 3: Cross multiply
    65,886.52x = 90,923.46 × 35,671.87
  4. Step 4: Simplify right side
    65,886.52x = 3,243,409,845.07
  5. Step 5: Solve for x
    x = 3,243,409,845.07/65,886.52
  6. Step 6: Final answer
    x = 49,227.21

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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.