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Finding the Fourth Proportional to 64,628.78, 96,945.78 and 22,513.12

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Solution

The fourth proportional to 64,628.78, 96,945.78 and 22,513.12 is: 33,770.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,628.78 : 96,945.78 = 22,513.12 : x
  2. Step 2: Convert to fraction form
    64,628.78/96,945.78 = 22,513.12/x
  3. Step 3: Cross multiply
    64,628.78x = 96,945.78 × 22,513.12
  4. Step 4: Simplify right side
    64,628.78x = 2,182,551,866.07
  5. Step 5: Solve for x
    x = 2,182,551,866.07/64,628.78
  6. Step 6: Final answer
    x = 33,770.59

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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.