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Finding the Fourth Proportional to 16,673.20, 25,009.80 and 12,955.30

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Solution

The fourth proportional to 16,673.20, 25,009.80 and 12,955.30 is: 19,432.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,673.20 : 25,009.80 = 12,955.30 : x
  2. Step 2: Convert to fraction form
    16,673.20/25,009.80 = 12,955.30/x
  3. Step 3: Cross multiply
    16,673.20x = 25,009.80 × 12,955.30
  4. Step 4: Simplify right side
    16,673.20x = 324,009,461.94
  5. Step 5: Solve for x
    x = 324,009,461.94/16,673.20
  6. Step 6: Final answer
    x = 19,432.95

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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.