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Finding the Fourth Proportional to 7,658.94, 11,484.48 and 2,980.26

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Solution

The fourth proportional to 7,658.94, 11,484.48 and 2,980.26 is: 4,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.94 : 11,484.48 = 2,980.26 : x
  2. Step 2: Convert to fraction form
    7,658.94/11,484.48 = 2,980.26/x
  3. Step 3: Cross multiply
    7,658.94x = 11,484.48 × 2,980.26
  4. Step 4: Simplify right side
    7,658.94x = 34,226,736.36
  5. Step 5: Solve for x
    x = 34,226,736.36/7,658.94
  6. Step 6: Final answer
    x = 4,468.86

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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.