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Finding the Fourth Proportional to 35,167.94, 52,715.45 and 21,990.05

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Solution

The fourth proportional to 35,167.94, 52,715.45 and 21,990.05 is: 32,962.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,167.94 : 52,715.45 = 21,990.05 : x
  2. Step 2: Convert to fraction form
    35,167.94/52,715.45 = 21,990.05/x
  3. Step 3: Cross multiply
    35,167.94x = 52,715.45 × 21,990.05
  4. Step 4: Simplify right side
    35,167.94x = 1,159,215,007.75
  5. Step 5: Solve for x
    x = 1,159,215,007.75/35,167.94
  6. Step 6: Final answer
    x = 32,962.27

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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.