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Finding the Fourth Proportional to 63,242, 87,266.40 and 34,943.84

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Solution

The fourth proportional to 63,242, 87,266.40 and 34,943.84 is: 48,218.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,242 : 87,266.40 = 34,943.84 : x
  2. Step 2: Convert to fraction form
    63,242/87,266.40 = 34,943.84/x
  3. Step 3: Cross multiply
    63,242x = 87,266.40 × 34,943.84
  4. Step 4: Simplify right side
    63,242x = 3,049,423,118.98
  5. Step 5: Solve for x
    x = 3,049,423,118.98/63,242
  6. Step 6: Final answer
    x = 48,218.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.