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Finding the Fourth Proportional to 44,528.64, 66,860.64 and 27,991.68

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Solution

The fourth proportional to 44,528.64, 66,860.64 and 27,991.68 is: 42,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,528.64 : 66,860.64 = 27,991.68 : x
  2. Step 2: Convert to fraction form
    44,528.64/66,860.64 = 27,991.68/x
  3. Step 3: Cross multiply
    44,528.64x = 66,860.64 × 27,991.68
  4. Step 4: Simplify right side
    44,528.64x = 1,871,541,639.48
  5. Step 5: Solve for x
    x = 1,871,541,639.48/44,528.64
  6. Step 6: Final answer
    x = 42,030.07

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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.