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Finding the Fourth Proportional to 10,992.67, 15,166.29 and 7,015.08

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Solution

The fourth proportional to 10,992.67, 15,166.29 and 7,015.08 is: 9,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.67 : 15,166.29 = 7,015.08 : x
  2. Step 2: Convert to fraction form
    10,992.67/15,166.29 = 7,015.08/x
  3. Step 3: Cross multiply
    10,992.67x = 15,166.29 × 7,015.08
  4. Step 4: Simplify right side
    10,992.67x = 106,392,737.65
  5. Step 5: Solve for x
    x = 106,392,737.65/10,992.67
  6. Step 6: Final answer
    x = 9,678.52

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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.