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Finding the Fourth Proportional to 18,007.83, 27,017.46 and 7,482.87

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Solution

The fourth proportional to 18,007.83, 27,017.46 and 7,482.87 is: 11,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.83 : 27,017.46 = 7,482.87 : x
  2. Step 2: Convert to fraction form
    18,007.83/27,017.46 = 7,482.87/x
  3. Step 3: Cross multiply
    18,007.83x = 27,017.46 × 7,482.87
  4. Step 4: Simplify right side
    18,007.83x = 202,168,140.91
  5. Step 5: Solve for x
    x = 202,168,140.91/18,007.83
  6. Step 6: Final answer
    x = 11,226.68

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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.