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Finding the Fourth Proportional to 64,472.12, 88,969.20 and 35,793.02

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Solution

The fourth proportional to 64,472.12, 88,969.20 and 35,793.02 is: 49,393.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,472.12 : 88,969.20 = 35,793.02 : x
  2. Step 2: Convert to fraction form
    64,472.12/88,969.20 = 35,793.02/x
  3. Step 3: Cross multiply
    64,472.12x = 88,969.20 × 35,793.02
  4. Step 4: Simplify right side
    64,472.12x = 3,184,476,354.98
  5. Step 5: Solve for x
    x = 3,184,476,354.98/64,472.12
  6. Step 6: Final answer
    x = 49,393.08

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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.