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Finding the Fourth Proportional to 63,023.49, 86,971.29 and 34,343.40

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Solution

The fourth proportional to 63,023.49, 86,971.29 and 34,343.40 is: 47,393.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,023.49 : 86,971.29 = 34,343.40 : x
  2. Step 2: Convert to fraction form
    63,023.49/86,971.29 = 34,343.40/x
  3. Step 3: Cross multiply
    63,023.49x = 86,971.29 × 34,343.40
  4. Step 4: Simplify right side
    63,023.49x = 2,986,889,800.99
  5. Step 5: Solve for x
    x = 2,986,889,800.99/63,023.49
  6. Step 6: Final answer
    x = 47,393.28

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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.