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Finding the Fourth Proportional to 62,969.34, 86,903.84 and 47,026.11

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Solution

The fourth proportional to 62,969.34, 86,903.84 and 47,026.11 is: 64,900.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,969.34 : 86,903.84 = 47,026.11 : x
  2. Step 2: Convert to fraction form
    62,969.34/86,903.84 = 47,026.11/x
  3. Step 3: Cross multiply
    62,969.34x = 86,903.84 × 47,026.11
  4. Step 4: Simplify right side
    62,969.34x = 4,086,749,304.13
  5. Step 5: Solve for x
    x = 4,086,749,304.13/62,969.34
  6. Step 6: Final answer
    x = 64,900.62

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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.