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Finding the Fourth Proportional to 42,361.26, 63,541.88 and 14,659.26

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Solution

The fourth proportional to 42,361.26, 63,541.88 and 14,659.26 is: 21,988.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,361.26 : 63,541.88 = 14,659.26 : x
  2. Step 2: Convert to fraction form
    42,361.26/63,541.88 = 14,659.26/x
  3. Step 3: Cross multiply
    42,361.26x = 63,541.88 × 14,659.26
  4. Step 4: Simplify right side
    42,361.26x = 931,476,939.81
  5. Step 5: Solve for x
    x = 931,476,939.81/42,361.26
  6. Step 6: Final answer
    x = 21,988.89

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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.