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Finding the Fourth Proportional to 7,651.85, 11,459.30 and 4,354.94

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Solution

The fourth proportional to 7,651.85, 11,459.30 and 4,354.94 is: 6,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.85 : 11,459.30 = 4,354.94 : x
  2. Step 2: Convert to fraction form
    7,651.85/11,459.30 = 4,354.94/x
  3. Step 3: Cross multiply
    7,651.85x = 11,459.30 × 4,354.94
  4. Step 4: Simplify right side
    7,651.85x = 49,904,570.82
  5. Step 5: Solve for x
    x = 49,904,570.82/7,651.85
  6. Step 6: Final answer
    x = 6,521.90

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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.