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Finding the Fourth Proportional to 65,886.23, 90,923.03 and 35,671.55

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Solution

The fourth proportional to 65,886.23, 90,923.03 and 35,671.55 is: 49,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,886.23 : 90,923.03 = 35,671.55 : x
  2. Step 2: Convert to fraction form
    65,886.23/90,923.03 = 35,671.55/x
  3. Step 3: Cross multiply
    65,886.23x = 90,923.03 × 35,671.55
  4. Step 4: Simplify right side
    65,886.23x = 3,243,365,459.75
  5. Step 5: Solve for x
    x = 3,243,365,459.75/65,886.23
  6. Step 6: Final answer
    x = 49,226.76

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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.