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Finding the Fourth Proportional to 22,941.40, 34,368.90 and 11,810.20

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Solution

The fourth proportional to 22,941.40, 34,368.90 and 11,810.20 is: 17,693.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,941.40 : 34,368.90 = 11,810.20 : x
  2. Step 2: Convert to fraction form
    22,941.40/34,368.90 = 11,810.20/x
  3. Step 3: Cross multiply
    22,941.40x = 34,368.90 × 11,810.20
  4. Step 4: Simplify right side
    22,941.40x = 405,903,582.78
  5. Step 5: Solve for x
    x = 405,903,582.78/22,941.40
  6. Step 6: Final answer
    x = 17,693.06

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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.