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Finding the Fourth Proportional to 64,990.59, 89,687.24 and 35,182.59

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Solution

The fourth proportional to 64,990.59, 89,687.24 and 35,182.59 is: 48,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,990.59 : 89,687.24 = 35,182.59 : x
  2. Step 2: Convert to fraction form
    64,990.59/89,687.24 = 35,182.59/x
  3. Step 3: Cross multiply
    64,990.59x = 89,687.24 × 35,182.59
  4. Step 4: Simplify right side
    64,990.59x = 3,155,429,393.15
  5. Step 5: Solve for x
    x = 3,155,429,393.15/64,990.59
  6. Step 6: Final answer
    x = 48,552.10

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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.