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Finding the Fourth Proportional to 64,853.28, 89,497.62 and 35,045.28

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Solution

The fourth proportional to 64,853.28, 89,497.62 and 35,045.28 is: 48,362.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,853.28 : 89,497.62 = 35,045.28 : x
  2. Step 2: Convert to fraction form
    64,853.28/89,497.62 = 35,045.28/x
  3. Step 3: Cross multiply
    64,853.28x = 89,497.62 × 35,045.28
  4. Step 4: Simplify right side
    64,853.28x = 3,136,469,152.23
  5. Step 5: Solve for x
    x = 3,136,469,152.23/64,853.28
  6. Step 6: Final answer
    x = 48,362.54

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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.