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Finding the Fourth Proportional to 10,927.69, 15,072.01 and 7,576.11

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Solution

The fourth proportional to 10,927.69, 15,072.01 and 7,576.11 is: 10,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.69 : 15,072.01 = 7,576.11 : x
  2. Step 2: Convert to fraction form
    10,927.69/15,072.01 = 7,576.11/x
  3. Step 3: Cross multiply
    10,927.69x = 15,072.01 × 7,576.11
  4. Step 4: Simplify right side
    10,927.69x = 114,187,186.74
  5. Step 5: Solve for x
    x = 114,187,186.74/10,927.69
  6. Step 6: Final answer
    x = 10,449.35

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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.