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Finding the Fourth Proportional to 8,908.01, 12,293.27 and 4,929.20

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Solution

The fourth proportional to 8,908.01, 12,293.27 and 4,929.20 is: 6,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.01 : 12,293.27 = 4,929.20 : x
  2. Step 2: Convert to fraction form
    8,908.01/12,293.27 = 4,929.20/x
  3. Step 3: Cross multiply
    8,908.01x = 12,293.27 × 4,929.20
  4. Step 4: Simplify right side
    8,908.01x = 60,595,986.48
  5. Step 5: Solve for x
    x = 60,595,986.48/8,908.01
  6. Step 6: Final answer
    x = 6,802.42

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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.