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Finding the Fourth Proportional to 14,932.53, 20,607.03 and 8,218.31

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Solution

The fourth proportional to 14,932.53, 20,607.03 and 8,218.31 is: 11,341.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,932.53 : 20,607.03 = 8,218.31 : x
  2. Step 2: Convert to fraction form
    14,932.53/20,607.03 = 8,218.31/x
  3. Step 3: Cross multiply
    14,932.53x = 20,607.03 × 8,218.31
  4. Step 4: Simplify right side
    14,932.53x = 169,354,996.71
  5. Step 5: Solve for x
    x = 169,354,996.71/14,932.53
  6. Step 6: Final answer
    x = 11,341.35

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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.