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Finding the Fourth Proportional to 14,228.52, 19,636.47 and 7,941.84

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Solution

The fourth proportional to 14,228.52, 19,636.47 and 7,941.84 is: 10,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.52 : 19,636.47 = 7,941.84 : x
  2. Step 2: Convert to fraction form
    14,228.52/19,636.47 = 7,941.84/x
  3. Step 3: Cross multiply
    14,228.52x = 19,636.47 × 7,941.84
  4. Step 4: Simplify right side
    14,228.52x = 155,949,702.90
  5. Step 5: Solve for x
    x = 155,949,702.90/14,228.52
  6. Step 6: Final answer
    x = 10,960.36

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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.