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Finding the Fourth Proportional to 64,386.48, 88,848.46 and 36,086.70

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Solution

The fourth proportional to 64,386.48, 88,848.46 and 36,086.70 is: 49,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,386.48 : 88,848.46 = 36,086.70 : x
  2. Step 2: Convert to fraction form
    64,386.48/88,848.46 = 36,086.70/x
  3. Step 3: Cross multiply
    64,386.48x = 88,848.46 × 36,086.70
  4. Step 4: Simplify right side
    64,386.48x = 3,206,247,721.48
  5. Step 5: Solve for x
    x = 3,206,247,721.48/64,386.48
  6. Step 6: Final answer
    x = 49,796.91

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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.