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Finding the Fourth Proportional to 17,578.68, 26,334.88 and 8,683.58

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Solution

The fourth proportional to 17,578.68, 26,334.88 and 8,683.58 is: 13,009.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,578.68 : 26,334.88 = 8,683.58 : x
  2. Step 2: Convert to fraction form
    17,578.68/26,334.88 = 8,683.58/x
  3. Step 3: Cross multiply
    17,578.68x = 26,334.88 × 8,683.58
  4. Step 4: Simplify right side
    17,578.68x = 228,681,037.27
  5. Step 5: Solve for x
    x = 228,681,037.27/17,578.68
  6. Step 6: Final answer
    x = 13,009.00

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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.