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Finding the Fourth Proportional to 10,811.64, 14,920.02 and 5,843.64

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Solution

The fourth proportional to 10,811.64, 14,920.02 and 5,843.64 is: 8,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.64 : 14,920.02 = 5,843.64 : x
  2. Step 2: Convert to fraction form
    10,811.64/14,920.02 = 5,843.64/x
  3. Step 3: Cross multiply
    10,811.64x = 14,920.02 × 5,843.64
  4. Step 4: Simplify right side
    10,811.64x = 87,187,225.67
  5. Step 5: Solve for x
    x = 87,187,225.67/10,811.64
  6. Step 6: Final answer
    x = 8,064.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.