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Finding the Fourth Proportional to 16,802.20, 25,203.30 and 12,865.60

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Solution

The fourth proportional to 16,802.20, 25,203.30 and 12,865.60 is: 19,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,802.20 : 25,203.30 = 12,865.60 : x
  2. Step 2: Convert to fraction form
    16,802.20/25,203.30 = 12,865.60/x
  3. Step 3: Cross multiply
    16,802.20x = 25,203.30 × 12,865.60
  4. Step 4: Simplify right side
    16,802.20x = 324,255,576.48
  5. Step 5: Solve for x
    x = 324,255,576.48/16,802.20
  6. Step 6: Final answer
    x = 19,298.40

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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.