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Finding the Fourth Proportional to 64,959.89, 89,644.92 and 35,151.89

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Solution

The fourth proportional to 64,959.89, 89,644.92 and 35,151.89 is: 48,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959.89 : 89,644.92 = 35,151.89 : x
  2. Step 2: Convert to fraction form
    64,959.89/89,644.92 = 35,151.89/x
  3. Step 3: Cross multiply
    64,959.89x = 89,644.92 × 35,151.89
  4. Step 4: Simplify right side
    64,959.89x = 3,151,188,389.97
  5. Step 5: Solve for x
    x = 3,151,188,389.97/64,959.89
  6. Step 6: Final answer
    x = 48,509.76

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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.