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Finding the Fourth Proportional to 64,889.33, 97,333.42 and 20,516.11

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Solution

The fourth proportional to 64,889.33, 97,333.42 and 20,516.11 is: 30,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,889.33 : 97,333.42 = 20,516.11 : x
  2. Step 2: Convert to fraction form
    64,889.33/97,333.42 = 20,516.11/x
  3. Step 3: Cross multiply
    64,889.33x = 97,333.42 × 20,516.11
  4. Step 4: Simplify right side
    64,889.33x = 1,996,903,394.73
  5. Step 5: Solve for x
    x = 1,996,903,394.73/64,889.33
  6. Step 6: Final answer
    x = 30,773.99

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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.