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Finding the Fourth Proportional to 29,390.63, 40,559.14 and 15,962.11

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Solution

The fourth proportional to 29,390.63, 40,559.14 and 15,962.11 is: 22,027.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,390.63 : 40,559.14 = 15,962.11 : x
  2. Step 2: Convert to fraction form
    29,390.63/40,559.14 = 15,962.11/x
  3. Step 3: Cross multiply
    29,390.63x = 40,559.14 × 15,962.11
  4. Step 4: Simplify right side
    29,390.63x = 647,409,312.88
  5. Step 5: Solve for x
    x = 647,409,312.88/29,390.63
  6. Step 6: Final answer
    x = 22,027.75

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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.