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Finding the Fourth Proportional to 14,410.52, 21,571.02 and 7,820.36

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Solution

The fourth proportional to 14,410.52, 21,571.02 and 7,820.36 is: 11,706.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,410.52 : 21,571.02 = 7,820.36 : x
  2. Step 2: Convert to fraction form
    14,410.52/21,571.02 = 7,820.36/x
  3. Step 3: Cross multiply
    14,410.52x = 21,571.02 × 7,820.36
  4. Step 4: Simplify right side
    14,410.52x = 168,693,141.97
  5. Step 5: Solve for x
    x = 168,693,141.97/14,410.52
  6. Step 6: Final answer
    x = 11,706.25

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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.