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Finding the Fourth Proportional to 64,394.52, 88,864.32 and 36,100.20

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Solution

The fourth proportional to 64,394.52, 88,864.32 and 36,100.20 is: 49,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,394.52 : 88,864.32 = 36,100.20 : x
  2. Step 2: Convert to fraction form
    64,394.52/88,864.32 = 36,100.20/x
  3. Step 3: Cross multiply
    64,394.52x = 88,864.32 × 36,100.20
  4. Step 4: Simplify right side
    64,394.52x = 3,208,019,724.86
  5. Step 5: Solve for x
    x = 3,208,019,724.86/64,394.52
  6. Step 6: Final answer
    x = 49,818.21

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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.