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Finding the Fourth Proportional to 64,205.80, 96,318.96 and 19,822.12

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Solution

The fourth proportional to 64,205.80, 96,318.96 and 19,822.12 is: 29,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,205.80 : 96,318.96 = 19,822.12 : x
  2. Step 2: Convert to fraction form
    64,205.80/96,318.96 = 19,822.12/x
  3. Step 3: Cross multiply
    64,205.80x = 96,318.96 × 19,822.12
  4. Step 4: Simplify right side
    64,205.80x = 1,909,245,983.40
  5. Step 5: Solve for x
    x = 1,909,245,983.40/64,205.80
  6. Step 6: Final answer
    x = 29,736.35

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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.