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Finding the Fourth Proportional to 11,355.99, 15,670.94 and 6,575.19

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Solution

The fourth proportional to 11,355.99, 15,670.94 and 6,575.19 is: 9,073.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.99 : 15,670.94 = 6,575.19 : x
  2. Step 2: Convert to fraction form
    11,355.99/15,670.94 = 6,575.19/x
  3. Step 3: Cross multiply
    11,355.99x = 15,670.94 × 6,575.19
  4. Step 4: Simplify right side
    11,355.99x = 103,039,375.10
  5. Step 5: Solve for x
    x = 103,039,375.10/11,355.99
  6. Step 6: Final answer
    x = 9,073.57

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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.