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Finding the Fourth Proportional to 8,392.90, 11,582.81 and 5,035.63

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Solution

The fourth proportional to 8,392.90, 11,582.81 and 5,035.63 is: 6,949.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.90 : 11,582.81 = 5,035.63 : x
  2. Step 2: Convert to fraction form
    8,392.90/11,582.81 = 5,035.63/x
  3. Step 3: Cross multiply
    8,392.90x = 11,582.81 × 5,035.63
  4. Step 4: Simplify right side
    8,392.90x = 58,326,720.34
  5. Step 5: Solve for x
    x = 58,326,720.34/8,392.90
  6. Step 6: Final answer
    x = 6,949.53

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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.