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Finding the Fourth Proportional to 16,899.60, 25,349.40 and 9,104.40

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Solution

The fourth proportional to 16,899.60, 25,349.40 and 9,104.40 is: 13,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899.60 : 25,349.40 = 9,104.40 : x
  2. Step 2: Convert to fraction form
    16,899.60/25,349.40 = 9,104.40/x
  3. Step 3: Cross multiply
    16,899.60x = 25,349.40 × 9,104.40
  4. Step 4: Simplify right side
    16,899.60x = 230,791,077.36
  5. Step 5: Solve for x
    x = 230,791,077.36/16,899.60
  6. Step 6: Final answer
    x = 13,656.60

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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.