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Finding the Fourth Proportional to 22,899.90, 34,363.08 and 12,370.11

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Solution

The fourth proportional to 22,899.90, 34,363.08 and 12,370.11 is: 18,562.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,899.90 : 34,363.08 = 12,370.11 : x
  2. Step 2: Convert to fraction form
    22,899.90/34,363.08 = 12,370.11/x
  3. Step 3: Cross multiply
    22,899.90x = 34,363.08 × 12,370.11
  4. Step 4: Simplify right side
    22,899.90x = 425,075,079.54
  5. Step 5: Solve for x
    x = 425,075,079.54/22,899.90
  6. Step 6: Final answer
    x = 18,562.31

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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.