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Finding the Fourth Proportional to 65,105.56, 89,846.40 and 36,810.64

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Solution

The fourth proportional to 65,105.56, 89,846.40 and 36,810.64 is: 50,799.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,105.56 : 89,846.40 = 36,810.64 : x
  2. Step 2: Convert to fraction form
    65,105.56/89,846.40 = 36,810.64/x
  3. Step 3: Cross multiply
    65,105.56x = 89,846.40 × 36,810.64
  4. Step 4: Simplify right side
    65,105.56x = 3,307,303,485.70
  5. Step 5: Solve for x
    x = 3,307,303,485.70/65,105.56
  6. Step 6: Final answer
    x = 50,799.09

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1.5x scale

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.