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Finding the Fourth Proportional to 14,994.66, 20,681.90 and 10,519.42

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Solution

The fourth proportional to 14,994.66, 20,681.90 and 10,519.42 is: 14,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,994.66 : 20,681.90 = 10,519.42 : x
  2. Step 2: Convert to fraction form
    14,994.66/20,681.90 = 10,519.42/x
  3. Step 3: Cross multiply
    14,994.66x = 20,681.90 × 10,519.42
  4. Step 4: Simplify right side
    14,994.66x = 217,561,592.50
  5. Step 5: Solve for x
    x = 217,561,592.50/14,994.66
  6. Step 6: Final answer
    x = 14,509.27

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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.