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Finding the Fourth Proportional to 64,576.68, 96,837.67 and 20,191.51

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Solution

The fourth proportional to 64,576.68, 96,837.67 and 20,191.51 is: 30,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,576.68 : 96,837.67 = 20,191.51 : x
  2. Step 2: Convert to fraction form
    64,576.68/96,837.67 = 20,191.51/x
  3. Step 3: Cross multiply
    64,576.68x = 96,837.67 × 20,191.51
  4. Step 4: Simplify right side
    64,576.68x = 1,955,298,782.18
  5. Step 5: Solve for x
    x = 1,955,298,782.18/64,576.68
  6. Step 6: Final answer
    x = 30,278.71

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1.5x scale

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.