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Finding the Fourth Proportional to 19,583.64, 29,188.80 and 18,476.64

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Solution

The fourth proportional to 19,583.64, 29,188.80 and 18,476.64 is: 27,538.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,583.64 : 29,188.80 = 18,476.64 : x
  2. Step 2: Convert to fraction form
    19,583.64/29,188.80 = 18,476.64/x
  3. Step 3: Cross multiply
    19,583.64x = 29,188.80 × 18,476.64
  4. Step 4: Simplify right side
    19,583.64x = 539,310,949.63
  5. Step 5: Solve for x
    x = 539,310,949.63/19,583.64
  6. Step 6: Final answer
    x = 27,538.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.