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Finding the Fourth Proportional to 17,715.60, 26,573.40 and 16,419.60

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Solution

The fourth proportional to 17,715.60, 26,573.40 and 16,419.60 is: 24,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,715.60 : 26,573.40 = 16,419.60 : x
  2. Step 2: Convert to fraction form
    17,715.60/26,573.40 = 16,419.60/x
  3. Step 3: Cross multiply
    17,715.60x = 26,573.40 × 16,419.60
  4. Step 4: Simplify right side
    17,715.60x = 436,324,598.64
  5. Step 5: Solve for x
    x = 436,324,598.64/17,715.60
  6. Step 6: Final answer
    x = 24,629.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.