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Finding the Fourth Proportional to 63,430.63, 87,531.98 and 36,208.11

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Solution

The fourth proportional to 63,430.63, 87,531.98 and 36,208.11 is: 49,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,430.63 : 87,531.98 = 36,208.11 : x
  2. Step 2: Convert to fraction form
    63,430.63/87,531.98 = 36,208.11/x
  3. Step 3: Cross multiply
    63,430.63x = 87,531.98 × 36,208.11
  4. Step 4: Simplify right side
    63,430.63x = 3,169,367,707.56
  5. Step 5: Solve for x
    x = 3,169,367,707.56/63,430.63
  6. Step 6: Final answer
    x = 49,965.89

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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.