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Finding the Fourth Proportional to 44,489.64, 66,810.78 and 39,503.28

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Solution

The fourth proportional to 44,489.64, 66,810.78 and 39,503.28 is: 59,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,489.64 : 66,810.78 = 39,503.28 : x
  2. Step 2: Convert to fraction form
    44,489.64/66,810.78 = 39,503.28/x
  3. Step 3: Cross multiply
    44,489.64x = 66,810.78 × 39,503.28
  4. Step 4: Simplify right side
    44,489.64x = 2,639,244,949.36
  5. Step 5: Solve for x
    x = 2,639,244,949.36/44,489.64
  6. Step 6: Final answer
    x = 59,322.69

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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.