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Finding the Fourth Proportional to 18,599.58, 25,657.86 and 11,878.14

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Solution

The fourth proportional to 18,599.58, 25,657.86 and 11,878.14 is: 16,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599.58 : 25,657.86 = 11,878.14 : x
  2. Step 2: Convert to fraction form
    18,599.58/25,657.86 = 11,878.14/x
  3. Step 3: Cross multiply
    18,599.58x = 25,657.86 × 11,878.14
  4. Step 4: Simplify right side
    18,599.58x = 304,767,653.18
  5. Step 5: Solve for x
    x = 304,767,653.18/18,599.58
  6. Step 6: Final answer
    x = 16,385.73

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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.