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Finding the Fourth Proportional to 4,775.65, 6,590.42 and 2,651.21

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Solution

The fourth proportional to 4,775.65, 6,590.42 and 2,651.21 is: 3,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.65 : 6,590.42 = 2,651.21 : x
  2. Step 2: Convert to fraction form
    4,775.65/6,590.42 = 2,651.21/x
  3. Step 3: Cross multiply
    4,775.65x = 6,590.42 × 2,651.21
  4. Step 4: Simplify right side
    4,775.65x = 17,472,575.86
  5. Step 5: Solve for x
    x = 17,472,575.86/4,775.65
  6. Step 6: Final answer
    x = 3,658.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.