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Finding the Fourth Proportional to 18,007.30, 27,003.66 and 6,914.35

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Solution

The fourth proportional to 18,007.30, 27,003.66 and 6,914.35 is: 10,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.30 : 27,003.66 = 6,914.35 : x
  2. Step 2: Convert to fraction form
    18,007.30/27,003.66 = 6,914.35/x
  3. Step 3: Cross multiply
    18,007.30x = 27,003.66 × 6,914.35
  4. Step 4: Simplify right side
    18,007.30x = 186,712,756.52
  5. Step 5: Solve for x
    x = 186,712,756.52/18,007.30
  6. Step 6: Final answer
    x = 10,368.73

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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.