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Finding the Fourth Proportional to 18,557.99, 27,841.59 and 5,410.47

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Solution

The fourth proportional to 18,557.99, 27,841.59 and 5,410.47 is: 8,117.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.99 : 27,841.59 = 5,410.47 : x
  2. Step 2: Convert to fraction form
    18,557.99/27,841.59 = 5,410.47/x
  3. Step 3: Cross multiply
    18,557.99x = 27,841.59 × 5,410.47
  4. Step 4: Simplify right side
    18,557.99x = 150,636,087.45
  5. Step 5: Solve for x
    x = 150,636,087.45/18,557.99
  6. Step 6: Final answer
    x = 8,117.05

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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.