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Finding the Fourth Proportional to 10,907.92, 15,046.92 and 7,376.08

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Solution

The fourth proportional to 10,907.92, 15,046.92 and 7,376.08 is: 10,174.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.92 : 15,046.92 = 7,376.08 : x
  2. Step 2: Convert to fraction form
    10,907.92/15,046.92 = 7,376.08/x
  3. Step 3: Cross multiply
    10,907.92x = 15,046.92 × 7,376.08
  4. Step 4: Simplify right side
    10,907.92x = 110,987,285.67
  5. Step 5: Solve for x
    x = 110,987,285.67/10,907.92
  6. Step 6: Final answer
    x = 10,174.93

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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.