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Finding the Fourth Proportional to 40,695.01, 61,046.29 and 12,615.28

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Solution

The fourth proportional to 40,695.01, 61,046.29 and 12,615.28 is: 18,924.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,695.01 : 61,046.29 = 12,615.28 : x
  2. Step 2: Convert to fraction form
    40,695.01/61,046.29 = 12,615.28/x
  3. Step 3: Cross multiply
    40,695.01x = 61,046.29 × 12,615.28
  4. Step 4: Simplify right side
    40,695.01x = 770,116,041.31
  5. Step 5: Solve for x
    x = 770,116,041.31/40,695.01
  6. Step 6: Final answer
    x = 18,924.09

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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.