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Finding the Fourth Proportional to 14,922.59, 20,588.99 and 9,620.51

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Solution

The fourth proportional to 14,922.59, 20,588.99 and 9,620.51 is: 13,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,922.59 : 20,588.99 = 9,620.51 : x
  2. Step 2: Convert to fraction form
    14,922.59/20,588.99 = 9,620.51/x
  3. Step 3: Cross multiply
    14,922.59x = 20,588.99 × 9,620.51
  4. Step 4: Simplify right side
    14,922.59x = 198,076,433.14
  5. Step 5: Solve for x
    x = 198,076,433.14/14,922.59
  6. Step 6: Final answer
    x = 13,273.60

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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.