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Finding the Fourth Proportional to 14,671.94, 20,248.99 and 8,301.15

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Solution

The fourth proportional to 14,671.94, 20,248.99 and 8,301.15 is: 11,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,671.94 : 20,248.99 = 8,301.15 : x
  2. Step 2: Convert to fraction form
    14,671.94/20,248.99 = 8,301.15/x
  3. Step 3: Cross multiply
    14,671.94x = 20,248.99 × 8,301.15
  4. Step 4: Simplify right side
    14,671.94x = 168,089,882.59
  5. Step 5: Solve for x
    x = 168,089,882.59/14,671.94
  6. Step 6: Final answer
    x = 11,456.56

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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.