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Finding the Fourth Proportional to 7,165.09, 10,748.15 and 3,000.91

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Solution

The fourth proportional to 7,165.09, 10,748.15 and 3,000.91 is: 4,501.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.09 : 10,748.15 = 3,000.91 : x
  2. Step 2: Convert to fraction form
    7,165.09/10,748.15 = 3,000.91/x
  3. Step 3: Cross multiply
    7,165.09x = 10,748.15 × 3,000.91
  4. Step 4: Simplify right side
    7,165.09x = 32,254,230.82
  5. Step 5: Solve for x
    x = 32,254,230.82/7,165.09
  6. Step 6: Final answer
    x = 4,501.58

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Similar ratio
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1.5x scale

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.