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Finding the Fourth Proportional to 21,706.56, 32,564.75 and 6,916.32

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Solution

The fourth proportional to 21,706.56, 32,564.75 and 6,916.32 is: 10,376.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,706.56 : 32,564.75 = 6,916.32 : x
  2. Step 2: Convert to fraction form
    21,706.56/32,564.75 = 6,916.32/x
  3. Step 3: Cross multiply
    21,706.56x = 32,564.75 × 6,916.32
  4. Step 4: Simplify right side
    21,706.56x = 225,228,231.72
  5. Step 5: Solve for x
    x = 225,228,231.72/21,706.56
  6. Step 6: Final answer
    x = 10,376.04

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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.