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Finding the Fourth Proportional to 10,992.80, 16,490.64 and 3,594.80

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Solution

The fourth proportional to 10,992.80, 16,490.64 and 3,594.80 is: 5,392.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.80 : 16,490.64 = 3,594.80 : x
  2. Step 2: Convert to fraction form
    10,992.80/16,490.64 = 3,594.80/x
  3. Step 3: Cross multiply
    10,992.80x = 16,490.64 × 3,594.80
  4. Step 4: Simplify right side
    10,992.80x = 59,280,552.67
  5. Step 5: Solve for x
    x = 59,280,552.67/10,992.80
  6. Step 6: Final answer
    x = 5,392.67

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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.