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Finding the Fourth Proportional to 28,971.70, 43,457.55 and 22,410.70

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Solution

The fourth proportional to 28,971.70, 43,457.55 and 22,410.70 is: 33,616.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.70 : 43,457.55 = 22,410.70 : x
  2. Step 2: Convert to fraction form
    28,971.70/43,457.55 = 22,410.70/x
  3. Step 3: Cross multiply
    28,971.70x = 43,457.55 × 22,410.70
  4. Step 4: Simplify right side
    28,971.70x = 973,914,115.79
  5. Step 5: Solve for x
    x = 973,914,115.79/28,971.70
  6. Step 6: Final answer
    x = 33,616.05

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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.