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Finding the Fourth Proportional to 14,195.31, 21,292.71 and 4,835.21

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Solution

The fourth proportional to 14,195.31, 21,292.71 and 4,835.21 is: 7,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,195.31 : 21,292.71 = 4,835.21 : x
  2. Step 2: Convert to fraction form
    14,195.31/21,292.71 = 4,835.21/x
  3. Step 3: Cross multiply
    14,195.31x = 21,292.71 × 4,835.21
  4. Step 4: Simplify right side
    14,195.31x = 102,954,617.86
  5. Step 5: Solve for x
    x = 102,954,617.86/14,195.31
  6. Step 6: Final answer
    x = 7,252.72

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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.