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Finding the Fourth Proportional to 11,041.92, 16,566.93 and 5,121.63

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Solution

The fourth proportional to 11,041.92, 16,566.93 and 5,121.63 is: 7,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,041.92 : 16,566.93 = 5,121.63 : x
  2. Step 2: Convert to fraction form
    11,041.92/16,566.93 = 5,121.63/x
  3. Step 3: Cross multiply
    11,041.92x = 16,566.93 × 5,121.63
  4. Step 4: Simplify right side
    11,041.92x = 84,849,685.70
  5. Step 5: Solve for x
    x = 84,849,685.70/11,041.92
  6. Step 6: Final answer
    x = 7,684.32

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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.