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Finding the Fourth Proportional to 19,359.84, 29,041.20 and 9,994.01

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Solution

The fourth proportional to 19,359.84, 29,041.20 and 9,994.01 is: 14,991.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.84 : 29,041.20 = 9,994.01 : x
  2. Step 2: Convert to fraction form
    19,359.84/29,041.20 = 9,994.01/x
  3. Step 3: Cross multiply
    19,359.84x = 29,041.20 × 9,994.01
  4. Step 4: Simplify right side
    19,359.84x = 290,238,043.21
  5. Step 5: Solve for x
    x = 290,238,043.21/19,359.84
  6. Step 6: Final answer
    x = 14,991.76

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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.