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Finding the Fourth Proportional to 53,607.26, 80,411.10 and 22,420.64

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Solution

The fourth proportional to 53,607.26, 80,411.10 and 22,420.64 is: 33,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,607.26 : 80,411.10 = 22,420.64 : x
  2. Step 2: Convert to fraction form
    53,607.26/80,411.10 = 22,420.64/x
  3. Step 3: Cross multiply
    53,607.26x = 80,411.10 × 22,420.64
  4. Step 4: Simplify right side
    53,607.26x = 1,802,868,325.10
  5. Step 5: Solve for x
    x = 1,802,868,325.10/53,607.26
  6. Step 6: Final answer
    x = 33,631.05

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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.