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Finding the Fourth Proportional to 17,103.60, 25,655.40 and 15,548.40

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Solution

The fourth proportional to 17,103.60, 25,655.40 and 15,548.40 is: 23,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.60 : 25,655.40 = 15,548.40 : x
  2. Step 2: Convert to fraction form
    17,103.60/25,655.40 = 15,548.40/x
  3. Step 3: Cross multiply
    17,103.60x = 25,655.40 × 15,548.40
  4. Step 4: Simplify right side
    17,103.60x = 398,900,421.36
  5. Step 5: Solve for x
    x = 398,900,421.36/17,103.60
  6. Step 6: Final answer
    x = 23,322.60

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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.