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Finding the Fourth Proportional to 64,939.33, 89,615.39 and 36,259.43

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Solution

The fourth proportional to 64,939.33, 89,615.39 and 36,259.43 is: 50,037.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,939.33 : 89,615.39 = 36,259.43 : x
  2. Step 2: Convert to fraction form
    64,939.33/89,615.39 = 36,259.43/x
  3. Step 3: Cross multiply
    64,939.33x = 89,615.39 × 36,259.43
  4. Step 4: Simplify right side
    64,939.33x = 3,249,403,275.31
  5. Step 5: Solve for x
    x = 3,249,403,275.31/64,939.33
  6. Step 6: Final answer
    x = 50,037.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.