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Finding the Fourth Proportional to 35,155.84, 52,742.22 and 14,379.40

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Solution

The fourth proportional to 35,155.84, 52,742.22 and 14,379.40 is: 21,572.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,155.84 : 52,742.22 = 14,379.40 : x
  2. Step 2: Convert to fraction form
    35,155.84/52,742.22 = 14,379.40/x
  3. Step 3: Cross multiply
    35,155.84x = 52,742.22 × 14,379.40
  4. Step 4: Simplify right side
    35,155.84x = 758,401,478.27
  5. Step 5: Solve for x
    x = 758,401,478.27/35,155.84
  6. Step 6: Final answer
    x = 21,572.56

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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.