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Finding the Fourth Proportional to 14,365.89, 19,825.17 and 7,992.99

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Solution

The fourth proportional to 14,365.89, 19,825.17 and 7,992.99 is: 11,030.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,365.89 : 19,825.17 = 7,992.99 : x
  2. Step 2: Convert to fraction form
    14,365.89/19,825.17 = 7,992.99/x
  3. Step 3: Cross multiply
    14,365.89x = 19,825.17 × 7,992.99
  4. Step 4: Simplify right side
    14,365.89x = 158,462,385.56
  5. Step 5: Solve for x
    x = 158,462,385.56/14,365.89
  6. Step 6: Final answer
    x = 11,030.46

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1.5x scale

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.