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Finding the Fourth Proportional to 19,995.47, 29,950.06 and 9,449.58

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Solution

The fourth proportional to 19,995.47, 29,950.06 and 9,449.58 is: 14,153.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,995.47 : 29,950.06 = 9,449.58 : x
  2. Step 2: Convert to fraction form
    19,995.47/29,950.06 = 9,449.58/x
  3. Step 3: Cross multiply
    19,995.47x = 29,950.06 × 9,449.58
  4. Step 4: Simplify right side
    19,995.47x = 283,015,487.97
  5. Step 5: Solve for x
    x = 283,015,487.97/19,995.47
  6. Step 6: Final answer
    x = 14,153.98

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1.5x scale

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.