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Finding the Fourth Proportional to 11,551.59, 15,941.14 and 7,012.69

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Solution

The fourth proportional to 11,551.59, 15,941.14 and 7,012.69 is: 9,677.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.59 : 15,941.14 = 7,012.69 : x
  2. Step 2: Convert to fraction form
    11,551.59/15,941.14 = 7,012.69/x
  3. Step 3: Cross multiply
    11,551.59x = 15,941.14 × 7,012.69
  4. Step 4: Simplify right side
    11,551.59x = 111,790,238.00
  5. Step 5: Solve for x
    x = 111,790,238.00/11,551.59
  6. Step 6: Final answer
    x = 9,677.48

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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.