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Finding the Fourth Proportional to 10,551.62, 15,832.94 and 7,653.85

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Solution

The fourth proportional to 10,551.62, 15,832.94 and 7,653.85 is: 11,484.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551.62 : 15,832.94 = 7,653.85 : x
  2. Step 2: Convert to fraction form
    10,551.62/15,832.94 = 7,653.85/x
  3. Step 3: Cross multiply
    10,551.62x = 15,832.94 × 7,653.85
  4. Step 4: Simplify right side
    10,551.62x = 121,182,869.97
  5. Step 5: Solve for x
    x = 121,182,869.97/10,551.62
  6. Step 6: Final answer
    x = 11,484.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.