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Finding the Fourth Proportional to 16,862.40, 25,308.90 and 8,548.20

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Solution

The fourth proportional to 16,862.40, 25,308.90 and 8,548.20 is: 12,830.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.40 : 25,308.90 = 8,548.20 : x
  2. Step 2: Convert to fraction form
    16,862.40/25,308.90 = 8,548.20/x
  3. Step 3: Cross multiply
    16,862.40x = 25,308.90 × 8,548.20
  4. Step 4: Simplify right side
    16,862.40x = 216,345,538.98
  5. Step 5: Solve for x
    x = 216,345,538.98/16,862.40
  6. Step 6: Final answer
    x = 12,830.06

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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.