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Finding the Fourth Proportional to 64,105.80, 96,169.14 and 19,732.56

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Solution

The fourth proportional to 64,105.80, 96,169.14 and 19,732.56 is: 29,602.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,105.80 : 96,169.14 = 19,732.56 : x
  2. Step 2: Convert to fraction form
    64,105.80/96,169.14 = 19,732.56/x
  3. Step 3: Cross multiply
    64,105.80x = 96,169.14 × 19,732.56
  4. Step 4: Simplify right side
    64,105.80x = 1,897,663,325.20
  5. Step 5: Solve for x
    x = 1,897,663,325.20/64,105.80
  6. Step 6: Final answer
    x = 29,602.05

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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.