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Finding the Fourth Proportional to 18,460.87, 27,698.20 and 11,070.63

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Solution

The fourth proportional to 18,460.87, 27,698.20 and 11,070.63 is: 16,610.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.87 : 27,698.20 = 11,070.63 : x
  2. Step 2: Convert to fraction form
    18,460.87/27,698.20 = 11,070.63/x
  3. Step 3: Cross multiply
    18,460.87x = 27,698.20 × 11,070.63
  4. Step 4: Simplify right side
    18,460.87x = 306,636,496.19
  5. Step 5: Solve for x
    x = 306,636,496.19/18,460.87
  6. Step 6: Final answer
    x = 16,610.08

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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.