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Finding the Fourth Proportional to 19,304.92, 28,962.86 and 9,951.79

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Solution

The fourth proportional to 19,304.92, 28,962.86 and 9,951.79 is: 14,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,304.92 : 28,962.86 = 9,951.79 : x
  2. Step 2: Convert to fraction form
    19,304.92/28,962.86 = 9,951.79/x
  3. Step 3: Cross multiply
    19,304.92x = 28,962.86 × 9,951.79
  4. Step 4: Simplify right side
    19,304.92x = 288,232,300.52
  5. Step 5: Solve for x
    x = 288,232,300.52/19,304.92
  6. Step 6: Final answer
    x = 14,930.51

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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.