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Finding the Fourth Proportional to 11,151.40, 16,752.70 and 10,716.20

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Solution

The fourth proportional to 11,151.40, 16,752.70 and 10,716.20 is: 16,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.40 : 16,752.70 = 10,716.20 : x
  2. Step 2: Convert to fraction form
    11,151.40/16,752.70 = 10,716.20/x
  3. Step 3: Cross multiply
    11,151.40x = 16,752.70 × 10,716.20
  4. Step 4: Simplify right side
    11,151.40x = 179,525,283.74
  5. Step 5: Solve for x
    x = 179,525,283.74/11,151.40
  6. Step 6: Final answer
    x = 16,098.90

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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.