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Finding the Fourth Proportional to 19,097.70, 28,664.67 and 8,001.30

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Solution

The fourth proportional to 19,097.70, 28,664.67 and 8,001.30 is: 12,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,097.70 : 28,664.67 = 8,001.30 : x
  2. Step 2: Convert to fraction form
    19,097.70/28,664.67 = 8,001.30/x
  3. Step 3: Cross multiply
    19,097.70x = 28,664.67 × 8,001.30
  4. Step 4: Simplify right side
    19,097.70x = 229,354,624.07
  5. Step 5: Solve for x
    x = 229,354,624.07/19,097.70
  6. Step 6: Final answer
    x = 12,009.54

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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.