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Finding the Fourth Proportional to 4,703.04, 7,048.80 and 2,756.64

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Solution

The fourth proportional to 4,703.04, 7,048.80 and 2,756.64 is: 4,131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,703.04 : 7,048.80 = 2,756.64 : x
  2. Step 2: Convert to fraction form
    4,703.04/7,048.80 = 2,756.64/x
  3. Step 3: Cross multiply
    4,703.04x = 7,048.80 × 2,756.64
  4. Step 4: Simplify right side
    4,703.04x = 19,431,004.03
  5. Step 5: Solve for x
    x = 19,431,004.03/4,703.04
  6. Step 6: Final answer
    x = 4,131.58

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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.