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Finding the Fourth Proportional to 19,671.84, 26,994.42 and 17,889.84

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Solution

The fourth proportional to 19,671.84, 26,994.42 and 17,889.84 is: 24,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,671.84 : 26,994.42 = 17,889.84 : x
  2. Step 2: Convert to fraction form
    19,671.84/26,994.42 = 17,889.84/x
  3. Step 3: Cross multiply
    19,671.84x = 26,994.42 × 17,889.84
  4. Step 4: Simplify right side
    19,671.84x = 482,925,854.69
  5. Step 5: Solve for x
    x = 482,925,854.69/19,671.84
  6. Step 6: Final answer
    x = 24,549.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.