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Finding the Fourth Proportional to 11,416.65, 17,124.73 and 5,260.65

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Solution

The fourth proportional to 11,416.65, 17,124.73 and 5,260.65 is: 7,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.65 : 17,124.73 = 5,260.65 : x
  2. Step 2: Convert to fraction form
    11,416.65/17,124.73 = 5,260.65/x
  3. Step 3: Cross multiply
    11,416.65x = 17,124.73 × 5,260.65
  4. Step 4: Simplify right side
    11,416.65x = 90,087,210.87
  5. Step 5: Solve for x
    x = 90,087,210.87/11,416.65
  6. Step 6: Final answer
    x = 7,890.86

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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.