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Finding the Fourth Proportional to 11,356.65, 17,045.10 and 6,670.80

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Solution

The fourth proportional to 11,356.65, 17,045.10 and 6,670.80 is: 10,012.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.65 : 17,045.10 = 6,670.80 : x
  2. Step 2: Convert to fraction form
    11,356.65/17,045.10 = 6,670.80/x
  3. Step 3: Cross multiply
    11,356.65x = 17,045.10 × 6,670.80
  4. Step 4: Simplify right side
    11,356.65x = 113,704,453.08
  5. Step 5: Solve for x
    x = 113,704,453.08/11,356.65
  6. Step 6: Final answer
    x = 10,012.15

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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.