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Finding the Fourth Proportional to 44,471.64, 66,783.78 and 39,485.28

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Solution

The fourth proportional to 44,471.64, 66,783.78 and 39,485.28 is: 59,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,471.64 : 66,783.78 = 39,485.28 : x
  2. Step 2: Convert to fraction form
    44,471.64/66,783.78 = 39,485.28/x
  3. Step 3: Cross multiply
    44,471.64x = 66,783.78 × 39,485.28
  4. Step 4: Simplify right side
    44,471.64x = 2,636,976,252.76
  5. Step 5: Solve for x
    x = 2,636,976,252.76/44,471.64
  6. Step 6: Final answer
    x = 59,295.68

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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.