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Finding the Fourth Proportional to 14,992, 20,698.56 and 13,417.36

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Solution

The fourth proportional to 14,992, 20,698.56 and 13,417.36 is: 18,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992 : 20,698.56 = 13,417.36 : x
  2. Step 2: Convert to fraction form
    14,992/20,698.56 = 13,417.36/x
  3. Step 3: Cross multiply
    14,992x = 20,698.56 × 13,417.36
  4. Step 4: Simplify right side
    14,992x = 277,720,031.00
  5. Step 5: Solve for x
    x = 277,720,031.00/14,992
  6. Step 6: Final answer
    x = 18,524.55

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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.