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Finding the Fourth Proportional to 8,908.11, 12,293.37 and 4,929.12

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Solution

The fourth proportional to 8,908.11, 12,293.37 and 4,929.12 is: 6,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.11 : 12,293.37 = 4,929.12 : x
  2. Step 2: Convert to fraction form
    8,908.11/12,293.37 = 4,929.12/x
  3. Step 3: Cross multiply
    8,908.11x = 12,293.37 × 4,929.12
  4. Step 4: Simplify right side
    8,908.11x = 60,595,495.93
  5. Step 5: Solve for x
    x = 60,595,495.93/8,908.11
  6. Step 6: Final answer
    x = 6,802.28

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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.