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Finding the Fourth Proportional to 19,869.84, 29,765.88 and 16,364.88

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Solution

The fourth proportional to 19,869.84, 29,765.88 and 16,364.88 is: 24,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.84 : 29,765.88 = 16,364.88 : x
  2. Step 2: Convert to fraction form
    19,869.84/29,765.88 = 16,364.88/x
  3. Step 3: Cross multiply
    19,869.84x = 29,765.88 × 16,364.88
  4. Step 4: Simplify right side
    19,869.84x = 487,115,054.29
  5. Step 5: Solve for x
    x = 487,115,054.29/19,869.84
  6. Step 6: Final answer
    x = 24,515.30

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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.