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Finding the Fourth Proportional to 12,036.32, 18,039.44 and 5,795.17

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Solution

The fourth proportional to 12,036.32, 18,039.44 and 5,795.17 is: 8,685.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,036.32 : 18,039.44 = 5,795.17 : x
  2. Step 2: Convert to fraction form
    12,036.32/18,039.44 = 5,795.17/x
  3. Step 3: Cross multiply
    12,036.32x = 18,039.44 × 5,795.17
  4. Step 4: Simplify right side
    12,036.32x = 104,541,621.50
  5. Step 5: Solve for x
    x = 104,541,621.50/12,036.32
  6. Step 6: Final answer
    x = 8,685.51

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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.