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Finding the Fourth Proportional to 8,908.29, 12,293.53 and 4,929.49

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Solution

The fourth proportional to 8,908.29, 12,293.53 and 4,929.49 is: 6,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.29 : 12,293.53 = 4,929.49 : x
  2. Step 2: Convert to fraction form
    8,908.29/12,293.53 = 4,929.49/x
  3. Step 3: Cross multiply
    8,908.29x = 12,293.53 × 4,929.49
  4. Step 4: Simplify right side
    8,908.29x = 60,600,836.24
  5. Step 5: Solve for x
    x = 60,600,836.24/8,908.29
  6. Step 6: Final answer
    x = 6,802.75

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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.