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Finding the Fourth Proportional to 5,165.16, 7,747.80 and 4,075.32

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Solution

The fourth proportional to 5,165.16, 7,747.80 and 4,075.32 is: 6,113.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.16 : 7,747.80 = 4,075.32 : x
  2. Step 2: Convert to fraction form
    5,165.16/7,747.80 = 4,075.32/x
  3. Step 3: Cross multiply
    5,165.16x = 7,747.80 × 4,075.32
  4. Step 4: Simplify right side
    5,165.16x = 31,574,764.30
  5. Step 5: Solve for x
    x = 31,574,764.30/5,165.16
  6. Step 6: Final answer
    x = 6,113.03

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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.