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Finding the Fourth Proportional to 63,678.48, 87,882.84 and 35,393.28

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Solution

The fourth proportional to 63,678.48, 87,882.84 and 35,393.28 is: 48,846.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,678.48 : 87,882.84 = 35,393.28 : x
  2. Step 2: Convert to fraction form
    63,678.48/87,882.84 = 35,393.28/x
  3. Step 3: Cross multiply
    63,678.48x = 87,882.84 × 35,393.28
  4. Step 4: Simplify right side
    63,678.48x = 3,110,461,963.32
  5. Step 5: Solve for x
    x = 3,110,461,963.32/63,678.48
  6. Step 6: Final answer
    x = 48,846.36

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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.