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Finding the Fourth Proportional to 18,070.74, 27,089.46 and 8,070.24

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Solution

The fourth proportional to 18,070.74, 27,089.46 and 8,070.24 is: 12,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.74 : 27,089.46 = 8,070.24 : x
  2. Step 2: Convert to fraction form
    18,070.74/27,089.46 = 8,070.24/x
  3. Step 3: Cross multiply
    18,070.74x = 27,089.46 × 8,070.24
  4. Step 4: Simplify right side
    18,070.74x = 218,618,443.67
  5. Step 5: Solve for x
    x = 218,618,443.67/18,070.74
  6. Step 6: Final answer
    x = 12,097.92

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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.