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Finding the Fourth Proportional to 16,618.60, 22,935.60 and 9,449.59

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Solution

The fourth proportional to 16,618.60, 22,935.60 and 9,449.59 is: 13,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.60 : 22,935.60 = 9,449.59 : x
  2. Step 2: Convert to fraction form
    16,618.60/22,935.60 = 9,449.59/x
  3. Step 3: Cross multiply
    16,618.60x = 22,935.60 × 9,449.59
  4. Step 4: Simplify right side
    16,618.60x = 216,732,016.40
  5. Step 5: Solve for x
    x = 216,732,016.40/16,618.60
  6. Step 6: Final answer
    x = 13,041.53

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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.