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Finding the Fourth Proportional to 15,889.84, 23,847.72 and 6,662.32

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Solution

The fourth proportional to 15,889.84, 23,847.72 and 6,662.32 is: 9,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.84 : 23,847.72 = 6,662.32 : x
  2. Step 2: Convert to fraction form
    15,889.84/23,847.72 = 6,662.32/x
  3. Step 3: Cross multiply
    15,889.84x = 23,847.72 × 6,662.32
  4. Step 4: Simplify right side
    15,889.84x = 158,881,141.91
  5. Step 5: Solve for x
    x = 158,881,141.91/15,889.84
  6. Step 6: Final answer
    x = 9,998.91

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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.