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Finding the Fourth Proportional to 8,663.09, 12,994.92 and 4,963.59

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Solution

The fourth proportional to 8,663.09, 12,994.92 and 4,963.59 is: 7,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.09 : 12,994.92 = 4,963.59 : x
  2. Step 2: Convert to fraction form
    8,663.09/12,994.92 = 4,963.59/x
  3. Step 3: Cross multiply
    8,663.09x = 12,994.92 × 4,963.59
  4. Step 4: Simplify right side
    8,663.09x = 64,501,454.96
  5. Step 5: Solve for x
    x = 64,501,454.96/8,663.09
  6. Step 6: Final answer
    x = 7,445.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.