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Finding the Fourth Proportional to 32,470.86, 48,700.80 and 9,091.92

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Solution

The fourth proportional to 32,470.86, 48,700.80 and 9,091.92 is: 13,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,470.86 : 48,700.80 = 9,091.92 : x
  2. Step 2: Convert to fraction form
    32,470.86/48,700.80 = 9,091.92/x
  3. Step 3: Cross multiply
    32,470.86x = 48,700.80 × 9,091.92
  4. Step 4: Simplify right side
    32,470.86x = 442,783,777.54
  5. Step 5: Solve for x
    x = 442,783,777.54/32,470.86
  6. Step 6: Final answer
    x = 13,636.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.