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Finding the Fourth Proportional to 64,727.79, 89,324.67 and 37,865.08

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Solution

The fourth proportional to 64,727.79, 89,324.67 and 37,865.08 is: 52,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,727.79 : 89,324.67 = 37,865.08 : x
  2. Step 2: Convert to fraction form
    64,727.79/89,324.67 = 37,865.08/x
  3. Step 3: Cross multiply
    64,727.79x = 89,324.67 × 37,865.08
  4. Step 4: Simplify right side
    64,727.79x = 3,382,285,775.52
  5. Step 5: Solve for x
    x = 3,382,285,775.52/64,727.79
  6. Step 6: Final answer
    x = 52,254.00

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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.