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Finding the Fourth Proportional to 18,309,088.80, 27,476,074.80 and 10,222,048.80

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Solution

The fourth proportional to 18,309,088.80, 27,476,074.80 and 10,222,048.80 is: 15,340,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,309,088.80 : 27,476,074.80 = 10,222,048.80 : x
  2. Step 2: Convert to fraction form
    18,309,088.80/27,476,074.80 = 10,222,048.80/x
  3. Step 3: Cross multiply
    18,309,088.80x = 27,476,074.80 × 10,222,048.80
  4. Step 4: Simplify right side
    18,309,088.80x = 280,861,777,438,050.28
  5. Step 5: Solve for x
    x = 280,861,777,438,050.28/18,309,088.80
  6. Step 6: Final answer
    x = 15,340,019.40

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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.