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Finding the Fourth Proportional to 9,150.84, 12,628.08 and 4,959.08

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Solution

The fourth proportional to 9,150.84, 12,628.08 and 4,959.08 is: 6,843.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,150.84 : 12,628.08 = 4,959.08 : x
  2. Step 2: Convert to fraction form
    9,150.84/12,628.08 = 4,959.08/x
  3. Step 3: Cross multiply
    9,150.84x = 12,628.08 × 4,959.08
  4. Step 4: Simplify right side
    9,150.84x = 62,623,658.97
  5. Step 5: Solve for x
    x = 62,623,658.97/9,150.84
  6. Step 6: Final answer
    x = 6,843.49

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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.