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Finding the Fourth Proportional to 17,810.94, 26,722.55 and 7,957.02

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Solution

The fourth proportional to 17,810.94, 26,722.55 and 7,957.02 is: 11,938.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,810.94 : 26,722.55 = 7,957.02 : x
  2. Step 2: Convert to fraction form
    17,810.94/26,722.55 = 7,957.02/x
  3. Step 3: Cross multiply
    17,810.94x = 26,722.55 × 7,957.02
  4. Step 4: Simplify right side
    17,810.94x = 212,631,864.80
  5. Step 5: Solve for x
    x = 212,631,864.80/17,810.94
  6. Step 6: Final answer
    x = 11,938.27

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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.