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Finding the Fourth Proportional to 8,893.64, 13,342.82 and 2,653.68

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Solution

The fourth proportional to 8,893.64, 13,342.82 and 2,653.68 is: 3,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.64 : 13,342.82 = 2,653.68 : x
  2. Step 2: Convert to fraction form
    8,893.64/13,342.82 = 2,653.68/x
  3. Step 3: Cross multiply
    8,893.64x = 13,342.82 × 2,653.68
  4. Step 4: Simplify right side
    8,893.64x = 35,407,574.58
  5. Step 5: Solve for x
    x = 35,407,574.58/8,893.64
  6. Step 6: Final answer
    x = 3,981.22

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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.