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Finding the Fourth Proportional to 14,634.84, 20,207.16 and 14,605.68

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Solution

The fourth proportional to 14,634.84, 20,207.16 and 14,605.68 is: 20,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,634.84 : 20,207.16 = 14,605.68 : x
  2. Step 2: Convert to fraction form
    14,634.84/20,207.16 = 14,605.68/x
  3. Step 3: Cross multiply
    14,634.84x = 20,207.16 × 14,605.68
  4. Step 4: Simplify right side
    14,634.84x = 295,139,312.67
  5. Step 5: Solve for x
    x = 295,139,312.67/14,634.84
  6. Step 6: Final answer
    x = 20,166.90

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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.