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Finding the Fourth Proportional to 7,602.91, 11,385.84 and 4,306

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Solution

The fourth proportional to 7,602.91, 11,385.84 and 4,306 is: 6,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,602.91 : 11,385.84 = 4,306 : x
  2. Step 2: Convert to fraction form
    7,602.91/11,385.84 = 4,306/x
  3. Step 3: Cross multiply
    7,602.91x = 11,385.84 × 4,306
  4. Step 4: Simplify right side
    7,602.91x = 49,027,427.04
  5. Step 5: Solve for x
    x = 49,027,427.04/7,602.91
  6. Step 6: Final answer
    x = 6,448.51

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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.