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Finding the Fourth Proportional to 15,662.88, 23,494.32 and 7,869.84

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Solution

The fourth proportional to 15,662.88, 23,494.32 and 7,869.84 is: 11,804.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662.88 : 23,494.32 = 7,869.84 : x
  2. Step 2: Convert to fraction form
    15,662.88/23,494.32 = 7,869.84/x
  3. Step 3: Cross multiply
    15,662.88x = 23,494.32 × 7,869.84
  4. Step 4: Simplify right side
    15,662.88x = 184,896,539.31
  5. Step 5: Solve for x
    x = 184,896,539.31/15,662.88
  6. Step 6: Final answer
    x = 11,804.76

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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.