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Finding the Fourth Proportional to 5,528.88, 7,629.90 and 3,011.00

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Solution

The fourth proportional to 5,528.88, 7,629.90 and 3,011.00 is: 4,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,528.88 : 7,629.90 = 3,011.00 : x
  2. Step 2: Convert to fraction form
    5,528.88/7,629.90 = 3,011.00/x
  3. Step 3: Cross multiply
    5,528.88x = 7,629.90 × 3,011.00
  4. Step 4: Simplify right side
    5,528.88x = 22,973,619.36
  5. Step 5: Solve for x
    x = 22,973,619.36/5,528.88
  6. Step 6: Final answer
    x = 4,155.20

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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.