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Finding the Fourth Proportional to 7,158.55, 10,741.02 and 2,776.35

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Solution

The fourth proportional to 7,158.55, 10,741.02 and 2,776.35 is: 4,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.55 : 10,741.02 = 2,776.35 : x
  2. Step 2: Convert to fraction form
    7,158.55/10,741.02 = 2,776.35/x
  3. Step 3: Cross multiply
    7,158.55x = 10,741.02 × 2,776.35
  4. Step 4: Simplify right side
    7,158.55x = 29,820,763.29
  5. Step 5: Solve for x
    x = 29,820,763.29/7,158.55
  6. Step 6: Final answer
    x = 4,165.75

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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.