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Finding the Fourth Proportional to 8,908.97, 12,293.31 and 4,929.54

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Solution

The fourth proportional to 8,908.97, 12,293.31 and 4,929.54 is: 6,802.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.97 : 12,293.31 = 4,929.54 : x
  2. Step 2: Convert to fraction form
    8,908.97/12,293.31 = 4,929.54/x
  3. Step 3: Cross multiply
    8,908.97x = 12,293.31 × 4,929.54
  4. Step 4: Simplify right side
    8,908.97x = 60,600,363.38
  5. Step 5: Solve for x
    x = 60,600,363.38/8,908.97
  6. Step 6: Final answer
    x = 6,802.18

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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.